Home / 1,131,983.64-1,561,910.85-648,700.38

Finding the Fourth Proportional to 1,131,983.64, 1,561,910.85 and 648,700.38

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Solution

The fourth proportional to 1,131,983.64, 1,561,910.85 and 648,700.38 is: 895,076.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,983.64 : 1,561,910.85 = 648,700.38 : x
  2. Step 2: Convert to fraction form
    1,131,983.64/1,561,910.85 = 648,700.38/x
  3. Step 3: Cross multiply
    1,131,983.64x = 1,561,910.85 × 648,700.38
  4. Step 4: Simplify right side
    1,131,983.64x = 1,013,212,161,921.12
  5. Step 5: Solve for x
    x = 1,013,212,161,921.12/1,131,983.64
  6. Step 6: Final answer
    x = 895,076.68

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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.