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Finding the Fourth Proportional to 656,502.60, 984,753.90 and 324,035.40

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Solution

The fourth proportional to 656,502.60, 984,753.90 and 324,035.40 is: 486,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,502.60 : 984,753.90 = 324,035.40 : x
  2. Step 2: Convert to fraction form
    656,502.60/984,753.90 = 324,035.40/x
  3. Step 3: Cross multiply
    656,502.60x = 984,753.90 × 324,035.40
  4. Step 4: Simplify right side
    656,502.60x = 319,095,123,888.06
  5. Step 5: Solve for x
    x = 319,095,123,888.06/656,502.60
  6. Step 6: Final answer
    x = 486,053.10

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Double scale
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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.