Home / 1,309,426.65-1,965,616.20-1,011,229.20

Finding the Fourth Proportional to 1,309,426.65, 1,965,616.20 and 1,011,229.20

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Solution

The fourth proportional to 1,309,426.65, 1,965,616.20 and 1,011,229.20 is: 1,517,983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,426.65 : 1,965,616.20 = 1,011,229.20 : x
  2. Step 2: Convert to fraction form
    1,309,426.65/1,965,616.20 = 1,011,229.20/x
  3. Step 3: Cross multiply
    1,309,426.65x = 1,965,616.20 × 1,011,229.20
  4. Step 4: Simplify right side
    1,309,426.65x = 1,987,688,497,433.04
  5. Step 5: Solve for x
    x = 1,987,688,497,433.04/1,309,426.65
  6. Step 6: Final answer
    x = 1,517,983.84

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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.