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Finding the Fourth Proportional to 488,436.60, 732,654.90 and 404,455.80

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Solution

The fourth proportional to 488,436.60, 732,654.90 and 404,455.80 is: 606,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,436.60 : 732,654.90 = 404,455.80 : x
  2. Step 2: Convert to fraction form
    488,436.60/732,654.90 = 404,455.80/x
  3. Step 3: Cross multiply
    488,436.60x = 732,654.90 × 404,455.80
  4. Step 4: Simplify right side
    488,436.60x = 296,326,523,703.42
  5. Step 5: Solve for x
    x = 296,326,523,703.42/488,436.60
  6. Step 6: Final answer
    x = 606,683.70

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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.