Home / 861,380.06-1,292,188.28-292,608.45

Finding the Fourth Proportional to 861,380.06, 1,292,188.28 and 292,608.45

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Solution

The fourth proportional to 861,380.06, 1,292,188.28 and 292,608.45 is: 438,952.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,380.06 : 1,292,188.28 = 292,608.45 : x
  2. Step 2: Convert to fraction form
    861,380.06/1,292,188.28 = 292,608.45/x
  3. Step 3: Cross multiply
    861,380.06x = 1,292,188.28 × 292,608.45
  4. Step 4: Simplify right side
    861,380.06x = 378,105,208,255.92
  5. Step 5: Solve for x
    x = 378,105,208,255.92/861,380.06
  6. Step 6: Final answer
    x = 438,952.82

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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.