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Finding the Fourth Proportional to 639,559.88, 959,263.40 and 497,546.92

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Solution

The fourth proportional to 639,559.88, 959,263.40 and 497,546.92 is: 746,260.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,559.88 : 959,263.40 = 497,546.92 : x
  2. Step 2: Convert to fraction form
    639,559.88/959,263.40 = 497,546.92/x
  3. Step 3: Cross multiply
    639,559.88x = 959,263.40 × 497,546.92
  4. Step 4: Simplify right side
    639,559.88x = 477,278,550,138.73
  5. Step 5: Solve for x
    x = 477,278,550,138.73/639,559.88
  6. Step 6: Final answer
    x = 746,260.93

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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.