Home / 827,140.80-1,240,711.20-228,194.40

Finding the Fourth Proportional to 827,140.80, 1,240,711.20 and 228,194.40

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Solution

The fourth proportional to 827,140.80, 1,240,711.20 and 228,194.40 is: 342,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,140.80 : 1,240,711.20 = 228,194.40 : x
  2. Step 2: Convert to fraction form
    827,140.80/1,240,711.20 = 228,194.40/x
  3. Step 3: Cross multiply
    827,140.80x = 1,240,711.20 × 228,194.40
  4. Step 4: Simplify right side
    827,140.80x = 283,123,347,857.28
  5. Step 5: Solve for x
    x = 283,123,347,857.28/827,140.80
  6. Step 6: Final answer
    x = 342,291.60

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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.