Home / 765,529.28-1,055,335.32-538,470.08

Finding the Fourth Proportional to 765,529.28, 1,055,335.32 and 538,470.08

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Solution

The fourth proportional to 765,529.28, 1,055,335.32 and 538,470.08 is: 742,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,529.28 : 1,055,335.32 = 538,470.08 : x
  2. Step 2: Convert to fraction form
    765,529.28/1,055,335.32 = 538,470.08/x
  3. Step 3: Cross multiply
    765,529.28x = 1,055,335.32 × 538,470.08
  4. Step 4: Simplify right side
    765,529.28x = 568,266,494,187.23
  5. Step 5: Solve for x
    x = 568,266,494,187.23/765,529.28
  6. Step 6: Final answer
    x = 742,318.43

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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.