Home / 754,015.36-1,040,542.32-414,485.68

Finding the Fourth Proportional to 754,015.36, 1,040,542.32 and 414,485.68

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Solution

The fourth proportional to 754,015.36, 1,040,542.32 and 414,485.68 is: 571,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,015.36 : 1,040,542.32 = 414,485.68 : x
  2. Step 2: Convert to fraction form
    754,015.36/1,040,542.32 = 414,485.68/x
  3. Step 3: Cross multiply
    754,015.36x = 1,040,542.32 × 414,485.68
  4. Step 4: Simplify right side
    754,015.36x = 431,289,891,073.98
  5. Step 5: Solve for x
    x = 431,289,891,073.98/754,015.36
  6. Step 6: Final answer
    x = 571,990.86

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Double scale
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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.