Home / 753,011.28-1,129,517.33-472,725.36

Finding the Fourth Proportional to 753,011.28, 1,129,517.33 and 472,725.36

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Solution

The fourth proportional to 753,011.28, 1,129,517.33 and 472,725.36 is: 709,088.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,011.28 : 1,129,517.33 = 472,725.36 : x
  2. Step 2: Convert to fraction form
    753,011.28/1,129,517.33 = 472,725.36/x
  3. Step 3: Cross multiply
    753,011.28x = 1,129,517.33 × 472,725.36
  4. Step 4: Simplify right side
    753,011.28x = 533,951,484,086.86
  5. Step 5: Solve for x
    x = 533,951,484,086.86/753,011.28
  6. Step 6: Final answer
    x = 709,088.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.