Home / 1,420,753.20-2,131,272.36-409,900.20

Finding the Fourth Proportional to 1,420,753.20, 2,131,272.36 and 409,900.20

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Solution

The fourth proportional to 1,420,753.20, 2,131,272.36 and 409,900.20 is: 614,891.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,753.20 : 2,131,272.36 = 409,900.20 : x
  2. Step 2: Convert to fraction form
    1,420,753.20/2,131,272.36 = 409,900.20/x
  3. Step 3: Cross multiply
    1,420,753.20x = 2,131,272.36 × 409,900.20
  4. Step 4: Simplify right side
    1,420,753.20x = 873,608,966,618.47
  5. Step 5: Solve for x
    x = 873,608,966,618.47/1,420,753.20
  6. Step 6: Final answer
    x = 614,891.43

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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.