Home / 1,040,123.78-1,560,680.48-720,767.11

Finding the Fourth Proportional to 1,040,123.78, 1,560,680.48 and 720,767.11

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Solution

The fourth proportional to 1,040,123.78, 1,560,680.48 and 720,767.11 is: 1,081,493.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,123.78 : 1,560,680.48 = 720,767.11 : x
  2. Step 2: Convert to fraction form
    1,040,123.78/1,560,680.48 = 720,767.11/x
  3. Step 3: Cross multiply
    1,040,123.78x = 1,560,680.48 × 720,767.11
  4. Step 4: Simplify right side
    1,040,123.78x = 1,124,887,157,103.23
  5. Step 5: Solve for x
    x = 1,124,887,157,103.23/1,040,123.78
  6. Step 6: Final answer
    x = 1,081,493.55

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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.