Home / 1,490,686.20-2,236,029.30-493,414.20

Finding the Fourth Proportional to 1,490,686.20, 2,236,029.30 and 493,414.20

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Solution

The fourth proportional to 1,490,686.20, 2,236,029.30 and 493,414.20 is: 740,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,686.20 : 2,236,029.30 = 493,414.20 : x
  2. Step 2: Convert to fraction form
    1,490,686.20/2,236,029.30 = 493,414.20/x
  3. Step 3: Cross multiply
    1,490,686.20x = 2,236,029.30 × 493,414.20
  4. Step 4: Simplify right side
    1,490,686.20x = 1,103,288,608,236.06
  5. Step 5: Solve for x
    x = 1,103,288,608,236.06/1,490,686.20
  6. Step 6: Final answer
    x = 740,121.30

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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.