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Finding the Fourth Proportional to 488,520.60, 732,780.90 and 404,539.80

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Solution

The fourth proportional to 488,520.60, 732,780.90 and 404,539.80 is: 606,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,520.60 : 732,780.90 = 404,539.80 : x
  2. Step 2: Convert to fraction form
    488,520.60/732,780.90 = 404,539.80/x
  3. Step 3: Cross multiply
    488,520.60x = 732,780.90 × 404,539.80
  4. Step 4: Simplify right side
    488,520.60x = 296,439,038,729.82
  5. Step 5: Solve for x
    x = 296,439,038,729.82/488,520.60
  6. Step 6: Final answer
    x = 606,809.70

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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.