Home / 1,256,044.28-1,733,731.38-998,378.43

Finding the Fourth Proportional to 1,256,044.28, 1,733,731.38 and 998,378.43

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Solution

The fourth proportional to 1,256,044.28, 1,733,731.38 and 998,378.43 is: 1,378,072.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,044.28 : 1,733,731.38 = 998,378.43 : x
  2. Step 2: Convert to fraction form
    1,256,044.28/1,733,731.38 = 998,378.43/x
  3. Step 3: Cross multiply
    1,256,044.28x = 1,733,731.38 × 998,378.43
  4. Step 4: Simplify right side
    1,256,044.28x = 1,730,920,013,206.13
  5. Step 5: Solve for x
    x = 1,730,920,013,206.13/1,256,044.28
  6. Step 6: Final answer
    x = 1,378,072.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.