Home / 987,685.22-1,363,005.12-579,787.06

Finding the Fourth Proportional to 987,685.22, 1,363,005.12 and 579,787.06

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Solution

The fourth proportional to 987,685.22, 1,363,005.12 and 579,787.06 is: 800,105.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,685.22 : 1,363,005.12 = 579,787.06 : x
  2. Step 2: Convert to fraction form
    987,685.22/1,363,005.12 = 579,787.06/x
  3. Step 3: Cross multiply
    987,685.22x = 1,363,005.12 × 579,787.06
  4. Step 4: Simplify right side
    987,685.22x = 790,252,727,882.24
  5. Step 5: Solve for x
    x = 790,252,727,882.24/987,685.22
  6. Step 6: Final answer
    x = 800,105.85

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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.