Home / 1,395,988.20-2,093,982.30-917,691.30

Finding the Fourth Proportional to 1,395,988.20, 2,093,982.30 and 917,691.30

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Solution

The fourth proportional to 1,395,988.20, 2,093,982.30 and 917,691.30 is: 1,376,536.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,988.20 : 2,093,982.30 = 917,691.30 : x
  2. Step 2: Convert to fraction form
    1,395,988.20/2,093,982.30 = 917,691.30/x
  3. Step 3: Cross multiply
    1,395,988.20x = 2,093,982.30 × 917,691.30
  4. Step 4: Simplify right side
    1,395,988.20x = 1,921,629,339,063.99
  5. Step 5: Solve for x
    x = 1,921,629,339,063.99/1,395,988.20
  6. Step 6: Final answer
    x = 1,376,536.95

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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.