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Finding the Fourth Proportional to 807,016.80, 1,207,414.80 and 527,080.80

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Solution

The fourth proportional to 807,016.80, 1,207,414.80 and 527,080.80 is: 788,589.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,016.80 : 1,207,414.80 = 527,080.80 : x
  2. Step 2: Convert to fraction form
    807,016.80/1,207,414.80 = 527,080.80/x
  3. Step 3: Cross multiply
    807,016.80x = 1,207,414.80 × 527,080.80
  4. Step 4: Simplify right side
    807,016.80x = 636,405,158,715.84
  5. Step 5: Solve for x
    x = 636,405,158,715.84/807,016.80
  6. Step 6: Final answer
    x = 788,589.73

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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.