Home / 861,247.72-1,188,513.30-479,267.92

Finding the Fourth Proportional to 861,247.72, 1,188,513.30 and 479,267.92

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Solution

The fourth proportional to 861,247.72, 1,188,513.30 and 479,267.92 is: 661,384.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,247.72 : 1,188,513.30 = 479,267.92 : x
  2. Step 2: Convert to fraction form
    861,247.72/1,188,513.30 = 479,267.92/x
  3. Step 3: Cross multiply
    861,247.72x = 1,188,513.30 × 479,267.92
  4. Step 4: Simplify right side
    861,247.72x = 569,616,297,183.34
  5. Step 5: Solve for x
    x = 569,616,297,183.34/861,247.72
  6. Step 6: Final answer
    x = 661,384.97

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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.