Home / 1,378,053.20-2,067,079.80-998,171.30

Finding the Fourth Proportional to 1,378,053.20, 2,067,079.80 and 998,171.30

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Solution

The fourth proportional to 1,378,053.20, 2,067,079.80 and 998,171.30 is: 1,497,256.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,053.20 : 2,067,079.80 = 998,171.30 : x
  2. Step 2: Convert to fraction form
    1,378,053.20/2,067,079.80 = 998,171.30/x
  3. Step 3: Cross multiply
    1,378,053.20x = 2,067,079.80 × 998,171.30
  4. Step 4: Simplify right side
    1,378,053.20x = 2,063,299,731,169.74
  5. Step 5: Solve for x
    x = 2,063,299,731,169.74/1,378,053.20
  6. Step 6: Final answer
    x = 1,497,256.95

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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.