Home / 753,660.55-1,040,039.76-414,121.51

Finding the Fourth Proportional to 753,660.55, 1,040,039.76 and 414,121.51

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Solution

The fourth proportional to 753,660.55, 1,040,039.76 and 414,121.51 is: 571,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,660.55 : 1,040,039.76 = 414,121.51 : x
  2. Step 2: Convert to fraction form
    753,660.55/1,040,039.76 = 414,121.51/x
  3. Step 3: Cross multiply
    753,660.55x = 1,040,039.76 × 414,121.51
  4. Step 4: Simplify right side
    753,660.55x = 430,702,835,871.24
  5. Step 5: Solve for x
    x = 430,702,835,871.24/753,660.55
  6. Step 6: Final answer
    x = 571,481.20

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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.