Home / 861,418.50-1,292,187.06-292,567.38

Finding the Fourth Proportional to 861,418.50, 1,292,187.06 and 292,567.38

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Solution

The fourth proportional to 861,418.50, 1,292,187.06 and 292,567.38 is: 438,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,418.50 : 1,292,187.06 = 292,567.38 : x
  2. Step 2: Convert to fraction form
    861,418.50/1,292,187.06 = 292,567.38/x
  3. Step 3: Cross multiply
    861,418.50x = 1,292,187.06 × 292,567.38
  4. Step 4: Simplify right side
    861,418.50x = 378,051,782,614.10
  5. Step 5: Solve for x
    x = 378,051,782,614.10/861,418.50
  6. Step 6: Final answer
    x = 438,871.21

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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.