Home / 661,817.92-913,291.00-375,331.85

Finding the Fourth Proportional to 661,817.92, 913,291.00 and 375,331.85

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Solution

The fourth proportional to 661,817.92, 913,291.00 and 375,331.85 is: 517,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,817.92 : 913,291.00 = 375,331.85 : x
  2. Step 2: Convert to fraction form
    661,817.92/913,291.00 = 375,331.85/x
  3. Step 3: Cross multiply
    661,817.92x = 913,291.00 × 375,331.85
  4. Step 4: Simplify right side
    661,817.92x = 342,787,201,107.04
  5. Step 5: Solve for x
    x = 342,787,201,107.04/661,817.92
  6. Step 6: Final answer
    x = 517,947.90

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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.