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Finding the Fourth Proportional to 488,766.49, 674,496.68 and 297,780.03

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Solution

The fourth proportional to 488,766.49, 674,496.68 and 297,780.03 is: 410,935.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,766.49 : 674,496.68 = 297,780.03 : x
  2. Step 2: Convert to fraction form
    488,766.49/674,496.68 = 297,780.03/x
  3. Step 3: Cross multiply
    488,766.49x = 674,496.68 × 297,780.03
  4. Step 4: Simplify right side
    488,766.49x = 200,851,640,116.40
  5. Step 5: Solve for x
    x = 200,851,640,116.40/488,766.49
  6. Step 6: Final answer
    x = 410,935.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.