Home / 1,387,197.80-2,080,278.30-965,220.20

Finding the Fourth Proportional to 1,387,197.80, 2,080,278.30 and 965,220.20

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Solution

The fourth proportional to 1,387,197.80, 2,080,278.30 and 965,220.20 is: 1,447,469.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,197.80 : 2,080,278.30 = 965,220.20 : x
  2. Step 2: Convert to fraction form
    1,387,197.80/2,080,278.30 = 965,220.20/x
  3. Step 3: Cross multiply
    1,387,197.80x = 2,080,278.30 × 965,220.20
  4. Step 4: Simplify right side
    1,387,197.80x = 2,007,926,636,781.66
  5. Step 5: Solve for x
    x = 2,007,926,636,781.66/1,387,197.80
  6. Step 6: Final answer
    x = 1,447,469.59

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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.