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Finding the Fourth Proportional to 656,474.40, 984,711.60 and 558,059.40

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Solution

The fourth proportional to 656,474.40, 984,711.60 and 558,059.40 is: 837,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,474.40 : 984,711.60 = 558,059.40 : x
  2. Step 2: Convert to fraction form
    656,474.40/984,711.60 = 558,059.40/x
  3. Step 3: Cross multiply
    656,474.40x = 984,711.60 × 558,059.40
  4. Step 4: Simplify right side
    656,474.40x = 549,527,564,669.04
  5. Step 5: Solve for x
    x = 549,527,564,669.04/656,474.40
  6. Step 6: Final answer
    x = 837,089.10

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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.