Home / 1,265,715.20-1,898,572.80-379,251.20

Finding the Fourth Proportional to 1,265,715.20, 1,898,572.80 and 379,251.20

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Solution

The fourth proportional to 1,265,715.20, 1,898,572.80 and 379,251.20 is: 568,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,715.20 : 1,898,572.80 = 379,251.20 : x
  2. Step 2: Convert to fraction form
    1,265,715.20/1,898,572.80 = 379,251.20/x
  3. Step 3: Cross multiply
    1,265,715.20x = 1,898,572.80 × 379,251.20
  4. Step 4: Simplify right side
    1,265,715.20x = 720,036,012,687.36
  5. Step 5: Solve for x
    x = 720,036,012,687.36/1,265,715.20
  6. Step 6: Final answer
    x = 568,876.80

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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.