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Finding the Fourth Proportional to 437,630.70, 656,446.05 and 260,046.30

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Solution

The fourth proportional to 437,630.70, 656,446.05 and 260,046.30 is: 390,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,630.70 : 656,446.05 = 260,046.30 : x
  2. Step 2: Convert to fraction form
    437,630.70/656,446.05 = 260,046.30/x
  3. Step 3: Cross multiply
    437,630.70x = 656,446.05 × 260,046.30
  4. Step 4: Simplify right side
    437,630.70x = 170,706,366,452.12
  5. Step 5: Solve for x
    x = 170,706,366,452.12/437,630.70
  6. Step 6: Final answer
    x = 390,069.45

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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.