Home / 754,120.71-1,040,693.37-409,957.32

Finding the Fourth Proportional to 754,120.71, 1,040,693.37 and 409,957.32

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Solution

The fourth proportional to 754,120.71, 1,040,693.37 and 409,957.32 is: 565,744.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,120.71 : 1,040,693.37 = 409,957.32 : x
  2. Step 2: Convert to fraction form
    754,120.71/1,040,693.37 = 409,957.32/x
  3. Step 3: Cross multiply
    754,120.71x = 1,040,693.37 × 409,957.32
  4. Step 4: Simplify right side
    754,120.71x = 426,639,864,906.97
  5. Step 5: Solve for x
    x = 426,639,864,906.97/754,120.71
  6. Step 6: Final answer
    x = 565,744.79

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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.