Home / 820,715.68-1,231,506.96-582,369.72

Finding the Fourth Proportional to 820,715.68, 1,231,506.96 and 582,369.72

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Solution

The fourth proportional to 820,715.68, 1,231,506.96 and 582,369.72 is: 873,862.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,715.68 : 1,231,506.96 = 582,369.72 : x
  2. Step 2: Convert to fraction form
    820,715.68/1,231,506.96 = 582,369.72/x
  3. Step 3: Cross multiply
    820,715.68x = 1,231,506.96 × 582,369.72
  4. Step 4: Simplify right side
    820,715.68x = 717,192,363,473.25
  5. Step 5: Solve for x
    x = 717,192,363,473.25/820,715.68
  6. Step 6: Final answer
    x = 873,862.14

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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.