Home / 754,470.60-1,040,987.18-478,727.92

Finding the Fourth Proportional to 754,470.60, 1,040,987.18 and 478,727.92

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Solution

The fourth proportional to 754,470.60, 1,040,987.18 and 478,727.92 is: 660,528.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,470.60 : 1,040,987.18 = 478,727.92 : x
  2. Step 2: Convert to fraction form
    754,470.60/1,040,987.18 = 478,727.92/x
  3. Step 3: Cross multiply
    754,470.60x = 1,040,987.18 × 478,727.92
  4. Step 4: Simplify right side
    754,470.60x = 498,349,627,428.07
  5. Step 5: Solve for x
    x = 498,349,627,428.07/754,470.60
  6. Step 6: Final answer
    x = 660,528.89

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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.