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Finding the Fourth Proportional to 492,772.80, 739,159.20 and 439,628.70

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Solution

The fourth proportional to 492,772.80, 739,159.20 and 439,628.70 is: 659,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,772.80 : 739,159.20 = 439,628.70 : x
  2. Step 2: Convert to fraction form
    492,772.80/739,159.20 = 439,628.70/x
  3. Step 3: Cross multiply
    492,772.80x = 739,159.20 × 439,628.70
  4. Step 4: Simplify right side
    492,772.80x = 324,955,598,189.04
  5. Step 5: Solve for x
    x = 324,955,598,189.04/492,772.80
  6. Step 6: Final answer
    x = 659,443.05

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Similar ratio
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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.