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Finding the Fourth Proportional to 492,080.15, 738,120.23 and 487,932.95

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Solution

The fourth proportional to 492,080.15, 738,120.23 and 487,932.95 is: 731,899.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,080.15 : 738,120.23 = 487,932.95 : x
  2. Step 2: Convert to fraction form
    492,080.15/738,120.23 = 487,932.95/x
  3. Step 3: Cross multiply
    492,080.15x = 738,120.23 × 487,932.95
  4. Step 4: Simplify right side
    492,080.15x = 360,153,181,278.58
  5. Step 5: Solve for x
    x = 360,153,181,278.58/492,080.15
  6. Step 6: Final answer
    x = 731,899.43

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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.