Home / 1,309,340.75-1,962,219.53-989,229.56

Finding the Fourth Proportional to 1,309,340.75, 1,962,219.53 and 989,229.56

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Solution

The fourth proportional to 1,309,340.75, 1,962,219.53 and 989,229.56 is: 1,482,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,340.75 : 1,962,219.53 = 989,229.56 : x
  2. Step 2: Convert to fraction form
    1,309,340.75/1,962,219.53 = 989,229.56/x
  3. Step 3: Cross multiply
    1,309,340.75x = 1,962,219.53 × 989,229.56
  4. Step 4: Simplify right side
    1,309,340.75x = 1,941,085,554,947.28
  5. Step 5: Solve for x
    x = 1,941,085,554,947.28/1,309,340.75
  6. Step 6: Final answer
    x = 1,482,490.76

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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.