Home / 861,848.61-1,292,861.20-329,817.12

Finding the Fourth Proportional to 861,848.61, 1,292,861.20 and 329,817.12

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Solution

The fourth proportional to 861,848.61, 1,292,861.20 and 329,817.12 is: 494,759.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,848.61 : 1,292,861.20 = 329,817.12 : x
  2. Step 2: Convert to fraction form
    861,848.61/1,292,861.20 = 329,817.12/x
  3. Step 3: Cross multiply
    861,848.61x = 1,292,861.20 × 329,817.12
  4. Step 4: Simplify right side
    861,848.61x = 426,407,757,543.74
  5. Step 5: Solve for x
    x = 426,407,757,543.74/861,848.61
  6. Step 6: Final answer
    x = 494,759.47

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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.