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Finding the Fourth Proportional to 485,526.60, 728,508.60 and 232,709.40

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Solution

The fourth proportional to 485,526.60, 728,508.60 and 232,709.40 is: 349,168.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,526.60 : 728,508.60 = 232,709.40 : x
  2. Step 2: Convert to fraction form
    485,526.60/728,508.60 = 232,709.40/x
  3. Step 3: Cross multiply
    485,526.60x = 728,508.60 × 232,709.40
  4. Step 4: Simplify right side
    485,526.60x = 169,530,799,200.84
  5. Step 5: Solve for x
    x = 169,530,799,200.84/485,526.60
  6. Step 6: Final answer
    x = 349,168.92

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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.