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Finding the Fourth Proportional to 496,348.26, 680,499.14 and 487,380.14

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Solution

The fourth proportional to 496,348.26, 680,499.14 and 487,380.14 is: 668,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,348.26 : 680,499.14 = 487,380.14 : x
  2. Step 2: Convert to fraction form
    496,348.26/680,499.14 = 487,380.14/x
  3. Step 3: Cross multiply
    496,348.26x = 680,499.14 × 487,380.14
  4. Step 4: Simplify right side
    496,348.26x = 331,661,766,123.08
  5. Step 5: Solve for x
    x = 331,661,766,123.08/496,348.26
  6. Step 6: Final answer
    x = 668,203.74

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.