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Finding the Fourth Proportional to 488,609.40, 731,747.70 and 488,609.40

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Solution

The fourth proportional to 488,609.40, 731,747.70 and 488,609.40 is: 731,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,609.40 : 731,747.70 = 488,609.40 : x
  2. Step 2: Convert to fraction form
    488,609.40/731,747.70 = 488,609.40/x
  3. Step 3: Cross multiply
    488,609.40x = 731,747.70 × 488,609.40
  4. Step 4: Simplify right side
    488,609.40x = 357,538,804,648.38
  5. Step 5: Solve for x
    x = 357,538,804,648.38/488,609.40
  6. Step 6: Final answer
    x = 731,747.70

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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.