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Finding the Fourth Proportional to 435,640.60, 653,558.10 and 341,162.20

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Solution

The fourth proportional to 435,640.60, 653,558.10 and 341,162.20 is: 511,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,640.60 : 653,558.10 = 341,162.20 : x
  2. Step 2: Convert to fraction form
    435,640.60/653,558.10 = 341,162.20/x
  3. Step 3: Cross multiply
    435,640.60x = 653,558.10 × 341,162.20
  4. Step 4: Simplify right side
    435,640.60x = 222,969,319,223.82
  5. Step 5: Solve for x
    x = 222,969,319,223.82/435,640.60
  6. Step 6: Final answer
    x = 511,819.42

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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.