Home / 664,916.43-997,394.81-215,624.91

Finding the Fourth Proportional to 664,916.43, 997,394.81 and 215,624.91

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Solution

The fourth proportional to 664,916.43, 997,394.81 and 215,624.91 is: 323,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,916.43 : 997,394.81 = 215,624.91 : x
  2. Step 2: Convert to fraction form
    664,916.43/997,394.81 = 215,624.91/x
  3. Step 3: Cross multiply
    664,916.43x = 997,394.81 × 215,624.91
  4. Step 4: Simplify right side
    664,916.43x = 215,063,165,062.59
  5. Step 5: Solve for x
    x = 215,063,165,062.59/664,916.43
  6. Step 6: Final answer
    x = 323,443.90

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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.