Home / 1,253,997.20-1,880,218.20-721,254.80

Finding the Fourth Proportional to 1,253,997.20, 1,880,218.20 and 721,254.80

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Solution

The fourth proportional to 1,253,997.20, 1,880,218.20 and 721,254.80 is: 1,081,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,997.20 : 1,880,218.20 = 721,254.80 : x
  2. Step 2: Convert to fraction form
    1,253,997.20/1,880,218.20 = 721,254.80/x
  3. Step 3: Cross multiply
    1,253,997.20x = 1,880,218.20 × 721,254.80
  4. Step 4: Simplify right side
    1,253,997.20x = 1,356,116,401,797.36
  5. Step 5: Solve for x
    x = 1,356,116,401,797.36/1,253,997.20
  6. Step 6: Final answer
    x = 1,081,434.95

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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.