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Finding the Fourth Proportional to 494,793.60, 742,190.40 and 437,712.90

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Solution

The fourth proportional to 494,793.60, 742,190.40 and 437,712.90 is: 656,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,793.60 : 742,190.40 = 437,712.90 : x
  2. Step 2: Convert to fraction form
    494,793.60/742,190.40 = 437,712.90/x
  3. Step 3: Cross multiply
    494,793.60x = 742,190.40 × 437,712.90
  4. Step 4: Simplify right side
    494,793.60x = 324,866,312,336.16
  5. Step 5: Solve for x
    x = 324,866,312,336.16/494,793.60
  6. Step 6: Final answer
    x = 656,569.35

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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.