Home / 861,371.40-1,292,175.30-292,599.83

Finding the Fourth Proportional to 861,371.40, 1,292,175.30 and 292,599.83

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Solution

The fourth proportional to 861,371.40, 1,292,175.30 and 292,599.83 is: 438,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,371.40 : 1,292,175.30 = 292,599.83 : x
  2. Step 2: Convert to fraction form
    861,371.40/1,292,175.30 = 292,599.83/x
  3. Step 3: Cross multiply
    861,371.40x = 1,292,175.30 × 292,599.83
  4. Step 4: Simplify right side
    861,371.40x = 378,090,266,649.32
  5. Step 5: Solve for x
    x = 378,090,266,649.32/861,371.40
  6. Step 6: Final answer
    x = 438,939.89

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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.