Home / 1,040,947.20-1,563,753.60-998,438.40

Finding the Fourth Proportional to 1,040,947.20, 1,563,753.60 and 998,438.40

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Solution

The fourth proportional to 1,040,947.20, 1,563,753.60 and 998,438.40 is: 1,499,895.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,947.20 : 1,563,753.60 = 998,438.40 : x
  2. Step 2: Convert to fraction form
    1,040,947.20/1,563,753.60 = 998,438.40/x
  3. Step 3: Cross multiply
    1,040,947.20x = 1,563,753.60 × 998,438.40
  4. Step 4: Simplify right side
    1,040,947.20x = 1,561,311,642,378.24
  5. Step 5: Solve for x
    x = 1,561,311,642,378.24/1,040,947.20
  6. Step 6: Final answer
    x = 1,499,895.14

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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.