Home / 861,787.32-1,188,384.45-571,297.83

Finding the Fourth Proportional to 861,787.32, 1,188,384.45 and 571,297.83

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Solution

The fourth proportional to 861,787.32, 1,188,384.45 and 571,297.83 is: 787,806.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,787.32 : 1,188,384.45 = 571,297.83 : x
  2. Step 2: Convert to fraction form
    861,787.32/1,188,384.45 = 571,297.83/x
  3. Step 3: Cross multiply
    861,787.32x = 1,188,384.45 × 571,297.83
  4. Step 4: Simplify right side
    861,787.32x = 678,921,450,891.94
  5. Step 5: Solve for x
    x = 678,921,450,891.94/861,787.32
  6. Step 6: Final answer
    x = 787,806.27

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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.