Home / 754,012.38-1,040,510.70-414,478.20

Finding the Fourth Proportional to 754,012.38, 1,040,510.70 and 414,478.20

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Solution

The fourth proportional to 754,012.38, 1,040,510.70 and 414,478.20 is: 571,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,012.38 : 1,040,510.70 = 414,478.20 : x
  2. Step 2: Convert to fraction form
    754,012.38/1,040,510.70 = 414,478.20/x
  3. Step 3: Cross multiply
    754,012.38x = 1,040,510.70 × 414,478.20
  4. Step 4: Simplify right side
    754,012.38x = 431,269,002,016.74
  5. Step 5: Solve for x
    x = 431,269,002,016.74/754,012.38
  6. Step 6: Final answer
    x = 571,965.41

Related Problems

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Half scale
Find fourth proportional to 1,508,024.76, 2,081,021.40 and 828,956.40
Double scale
Find fourth proportional to 754,013.38, 1,040,512.08 and 414,479.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.