Home / 784,514.97-1,079,233.34-687,280.95

Finding the Fourth Proportional to 784,514.97, 1,079,233.34 and 687,280.95

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Solution

The fourth proportional to 784,514.97, 1,079,233.34 and 687,280.95 is: 945,471.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,514.97 : 1,079,233.34 = 687,280.95 : x
  2. Step 2: Convert to fraction form
    784,514.97/1,079,233.34 = 687,280.95/x
  3. Step 3: Cross multiply
    784,514.97x = 1,079,233.34 × 687,280.95
  4. Step 4: Simplify right side
    784,514.97x = 741,736,511,750.47
  5. Step 5: Solve for x
    x = 741,736,511,750.47/784,514.97
  6. Step 6: Final answer
    x = 945,471.46

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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.