Home / 853,177.80-1,279,337.81-284,359.46

Finding the Fourth Proportional to 853,177.80, 1,279,337.81 and 284,359.46

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Solution

The fourth proportional to 853,177.80, 1,279,337.81 and 284,359.46 is: 426,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,177.80 : 1,279,337.81 = 284,359.46 : x
  2. Step 2: Convert to fraction form
    853,177.80/1,279,337.81 = 284,359.46/x
  3. Step 3: Cross multiply
    853,177.80x = 1,279,337.81 × 284,359.46
  4. Step 4: Simplify right side
    853,177.80x = 363,791,800,990.70
  5. Step 5: Solve for x
    x = 363,791,800,990.70/853,177.80
  6. Step 6: Final answer
    x = 426,396.23

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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.