Home / 452,822.40-679,233.60-389,836.80

Finding the Fourth Proportional to 452,822.40, 679,233.60 and 389,836.80

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Solution

The fourth proportional to 452,822.40, 679,233.60 and 389,836.80 is: 584,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,822.40 : 679,233.60 = 389,836.80 : x
  2. Step 2: Convert to fraction form
    452,822.40/679,233.60 = 389,836.80/x
  3. Step 3: Cross multiply
    452,822.40x = 679,233.60 × 389,836.80
  4. Step 4: Simplify right side
    452,822.40x = 264,790,253,076.48
  5. Step 5: Solve for x
    x = 264,790,253,076.48/452,822.40
  6. Step 6: Final answer
    x = 584,755.20

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Similar ratio
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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.