Home / 861,372.40-1,292,176.80-292,600.83

Finding the Fourth Proportional to 861,372.40, 1,292,176.80 and 292,600.83

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Solution

The fourth proportional to 861,372.40, 1,292,176.80 and 292,600.83 is: 438,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,372.40 : 1,292,176.80 = 292,600.83 : x
  2. Step 2: Convert to fraction form
    861,372.40/1,292,176.80 = 292,600.83/x
  3. Step 3: Cross multiply
    861,372.40x = 1,292,176.80 × 292,600.83
  4. Step 4: Simplify right side
    861,372.40x = 378,092,004,186.74
  5. Step 5: Solve for x
    x = 378,092,004,186.74/861,372.40
  6. Step 6: Final answer
    x = 438,941.40

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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.