Home / 861,374.90-1,292,180.55-292,603.33

Finding the Fourth Proportional to 861,374.90, 1,292,180.55 and 292,603.33

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Solution

The fourth proportional to 861,374.90, 1,292,180.55 and 292,603.33 is: 438,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,374.90 : 1,292,180.55 = 292,603.33 : x
  2. Step 2: Convert to fraction form
    861,374.90/1,292,180.55 = 292,603.33/x
  3. Step 3: Cross multiply
    861,374.90x = 1,292,180.55 × 292,603.33
  4. Step 4: Simplify right side
    861,374.90x = 378,096,331,891.23
  5. Step 5: Solve for x
    x = 378,096,331,891.23/861,374.90
  6. Step 6: Final answer
    x = 438,945.15

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1.5x scale

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.