Home / 861,154.62-1,188,724.05-646,916.10

Finding the Fourth Proportional to 861,154.62, 1,188,724.05 and 646,916.10

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Solution

The fourth proportional to 861,154.62, 1,188,724.05 and 646,916.10 is: 892,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,154.62 : 1,188,724.05 = 646,916.10 : x
  2. Step 2: Convert to fraction form
    861,154.62/1,188,724.05 = 646,916.10/x
  3. Step 3: Cross multiply
    861,154.62x = 1,188,724.05 × 646,916.10
  4. Step 4: Simplify right side
    861,154.62x = 769,004,726,402.21
  5. Step 5: Solve for x
    x = 769,004,726,402.21/861,154.62
  6. Step 6: Final answer
    x = 892,992.63

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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.