Home / 2,092,585-3,138,080.78-1,239,897.28

Finding the Fourth Proportional to 2,092,585, 3,138,080.78 and 1,239,897.28

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Solution

The fourth proportional to 2,092,585, 3,138,080.78 and 1,239,897.28 is: 1,859,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092,585 : 3,138,080.78 = 1,239,897.28 : x
  2. Step 2: Convert to fraction form
    2,092,585/3,138,080.78 = 1,239,897.28/x
  3. Step 3: Cross multiply
    2,092,585x = 3,138,080.78 × 1,239,897.28
  4. Step 4: Simplify right side
    2,092,585x = 3,890,897,823,542.28
  5. Step 5: Solve for x
    x = 3,890,897,823,542.28/2,092,585
  6. Step 6: Final answer
    x = 1,859,373.85

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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.