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Finding the Fourth Proportional to 437,514.70, 654,959.85 and 259,930.30

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Solution

The fourth proportional to 437,514.70, 654,959.85 and 259,930.30 is: 389,115.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,514.70 : 654,959.85 = 259,930.30 : x
  2. Step 2: Convert to fraction form
    437,514.70/654,959.85 = 259,930.30/x
  3. Step 3: Cross multiply
    437,514.70x = 654,959.85 × 259,930.30
  4. Step 4: Simplify right side
    437,514.70x = 170,243,910,298.46
  5. Step 5: Solve for x
    x = 170,243,910,298.46/437,514.70
  6. Step 6: Final answer
    x = 389,115.86

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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.