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Finding the Fourth Proportional to 457,790.59, 631,752.38 and 253,855.88

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Solution

The fourth proportional to 457,790.59, 631,752.38 and 253,855.88 is: 350,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,790.59 : 631,752.38 = 253,855.88 : x
  2. Step 2: Convert to fraction form
    457,790.59/631,752.38 = 253,855.88/x
  3. Step 3: Cross multiply
    457,790.59x = 631,752.38 × 253,855.88
  4. Step 4: Simplify right side
    457,790.59x = 160,374,056,366.99
  5. Step 5: Solve for x
    x = 160,374,056,366.99/457,790.59
  6. Step 6: Final answer
    x = 350,321.87

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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.