Home / 712,539.92-1,068,861.72-239,221.28

Finding the Fourth Proportional to 712,539.92, 1,068,861.72 and 239,221.28

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Solution

The fourth proportional to 712,539.92, 1,068,861.72 and 239,221.28 is: 358,849.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,539.92 : 1,068,861.72 = 239,221.28 : x
  2. Step 2: Convert to fraction form
    712,539.92/1,068,861.72 = 239,221.28/x
  3. Step 3: Cross multiply
    712,539.92x = 1,068,861.72 × 239,221.28
  4. Step 4: Simplify right side
    712,539.92x = 255,694,468,801.40
  5. Step 5: Solve for x
    x = 255,694,468,801.40/712,539.92
  6. Step 6: Final answer
    x = 358,849.32

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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.