Home / 1,425,439.40-1,967,107.02-780,882.92

Finding the Fourth Proportional to 1,425,439.40, 1,967,107.02 and 780,882.92

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Solution

The fourth proportional to 1,425,439.40, 1,967,107.02 and 780,882.92 is: 1,077,618.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,439.40 : 1,967,107.02 = 780,882.92 : x
  2. Step 2: Convert to fraction form
    1,425,439.40/1,967,107.02 = 780,882.92/x
  3. Step 3: Cross multiply
    1,425,439.40x = 1,967,107.02 × 780,882.92
  4. Step 4: Simplify right side
    1,425,439.40x = 1,536,080,273,730.10
  5. Step 5: Solve for x
    x = 1,536,080,273,730.10/1,425,439.40
  6. Step 6: Final answer
    x = 1,077,618.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.