Home / 1,155,589.20-1,731,310.20-989,701.20

Finding the Fourth Proportional to 1,155,589.20, 1,731,310.20 and 989,701.20

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Solution

The fourth proportional to 1,155,589.20, 1,731,310.20 and 989,701.20 is: 1,482,775.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,589.20 : 1,731,310.20 = 989,701.20 : x
  2. Step 2: Convert to fraction form
    1,155,589.20/1,731,310.20 = 989,701.20/x
  3. Step 3: Cross multiply
    1,155,589.20x = 1,731,310.20 × 989,701.20
  4. Step 4: Simplify right side
    1,155,589.20x = 1,713,479,782,512.24
  5. Step 5: Solve for x
    x = 1,713,479,782,512.24/1,155,589.20
  6. Step 6: Final answer
    x = 1,482,775.87

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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.