Home / 1,375,981.92-2,053,908.36-1,274,669.28

Finding the Fourth Proportional to 1,375,981.92, 2,053,908.36 and 1,274,669.28

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Solution

The fourth proportional to 1,375,981.92, 2,053,908.36 and 1,274,669.28 is: 1,902,680.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,981.92 : 2,053,908.36 = 1,274,669.28 : x
  2. Step 2: Convert to fraction form
    1,375,981.92/2,053,908.36 = 1,274,669.28/x
  3. Step 3: Cross multiply
    1,375,981.92x = 2,053,908.36 × 1,274,669.28
  4. Step 4: Simplify right side
    1,375,981.92x = 2,618,053,890,427.18
  5. Step 5: Solve for x
    x = 2,618,053,890,427.18/1,375,981.92
  6. Step 6: Final answer
    x = 1,902,680.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.