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Finding the Fourth Proportional to 442,408.23, 663,613.56 and 292,620.60

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Solution

The fourth proportional to 442,408.23, 663,613.56 and 292,620.60 is: 438,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,408.23 : 663,613.56 = 292,620.60 : x
  2. Step 2: Convert to fraction form
    442,408.23/663,613.56 = 292,620.60/x
  3. Step 3: Cross multiply
    442,408.23x = 663,613.56 × 292,620.60
  4. Step 4: Simplify right side
    442,408.23x = 194,186,998,095.34
  5. Step 5: Solve for x
    x = 194,186,998,095.34/442,408.23
  6. Step 6: Final answer
    x = 438,931.70

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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.