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Finding the Fourth Proportional to 544,437.90, 815,101.65 and 488,450.70

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Solution

The fourth proportional to 544,437.90, 815,101.65 and 488,450.70 is: 731,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,437.90 : 815,101.65 = 488,450.70 : x
  2. Step 2: Convert to fraction form
    544,437.90/815,101.65 = 488,450.70/x
  3. Step 3: Cross multiply
    544,437.90x = 815,101.65 × 488,450.70
  4. Step 4: Simplify right side
    544,437.90x = 398,136,971,513.66
  5. Step 5: Solve for x
    x = 398,136,971,513.66/544,437.90
  6. Step 6: Final answer
    x = 731,280.78

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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.