Home / 1,040,122.28-1,560,678.23-720,765.61

Finding the Fourth Proportional to 1,040,122.28, 1,560,678.23 and 720,765.61

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Solution

The fourth proportional to 1,040,122.28, 1,560,678.23 and 720,765.61 is: 1,081,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,122.28 : 1,560,678.23 = 720,765.61 : x
  2. Step 2: Convert to fraction form
    1,040,122.28/1,560,678.23 = 720,765.61/x
  3. Step 3: Cross multiply
    1,040,122.28x = 1,560,678.23 × 720,765.61
  4. Step 4: Simplify right side
    1,040,122.28x = 1,124,883,194,359.89
  5. Step 5: Solve for x
    x = 1,124,883,194,359.89/1,040,122.28
  6. Step 6: Final answer
    x = 1,081,491.30

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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.