Home / 820,909.24-1,132,543.02-498,497.56

Finding the Fourth Proportional to 820,909.24, 1,132,543.02 and 498,497.56

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Solution

The fourth proportional to 820,909.24, 1,132,543.02 and 498,497.56 is: 687,737.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,909.24 : 1,132,543.02 = 498,497.56 : x
  2. Step 2: Convert to fraction form
    820,909.24/1,132,543.02 = 498,497.56/x
  3. Step 3: Cross multiply
    820,909.24x = 1,132,543.02 × 498,497.56
  4. Step 4: Simplify right side
    820,909.24x = 564,569,932,065.03
  5. Step 5: Solve for x
    x = 564,569,932,065.03/820,909.24
  6. Step 6: Final answer
    x = 687,737.33

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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.