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Finding the Fourth Proportional to 656,474.31, 984,711.45 and 207,510.54

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Solution

The fourth proportional to 656,474.31, 984,711.45 and 207,510.54 is: 311,265.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,474.31 : 984,711.45 = 207,510.54 : x
  2. Step 2: Convert to fraction form
    656,474.31/984,711.45 = 207,510.54/x
  3. Step 3: Cross multiply
    656,474.31x = 984,711.45 × 207,510.54
  4. Step 4: Simplify right side
    656,474.31x = 204,338,004,733.68
  5. Step 5: Solve for x
    x = 204,338,004,733.68/656,474.31
  6. Step 6: Final answer
    x = 311,265.81

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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.