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Finding the Fourth Proportional to 478,432.50, 717,648.76 and 197,957.04

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Solution

The fourth proportional to 478,432.50, 717,648.76 and 197,957.04 is: 296,935.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,432.50 : 717,648.76 = 197,957.04 : x
  2. Step 2: Convert to fraction form
    478,432.50/717,648.76 = 197,957.04/x
  3. Step 3: Cross multiply
    478,432.50x = 717,648.76 × 197,957.04
  4. Step 4: Simplify right side
    478,432.50x = 142,063,624,289.27
  5. Step 5: Solve for x
    x = 142,063,624,289.27/478,432.50
  6. Step 6: Final answer
    x = 296,935.56

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Similar ratio
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1.5x scale

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.