Home / 641,399.08-961,943.10-267,217.96

Finding the Fourth Proportional to 641,399.08, 961,943.10 and 267,217.96

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Solution

The fourth proportional to 641,399.08, 961,943.10 and 267,217.96 is: 400,762.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,399.08 : 961,943.10 = 267,217.96 : x
  2. Step 2: Convert to fraction form
    641,399.08/961,943.10 = 267,217.96/x
  3. Step 3: Cross multiply
    641,399.08x = 961,943.10 × 267,217.96
  4. Step 4: Simplify right side
    641,399.08x = 257,048,472,818.08
  5. Step 5: Solve for x
    x = 257,048,472,818.08/641,399.08
  6. Step 6: Final answer
    x = 400,762.15

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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.