Home / 1,780,061.28-2,455,880.30-1,005,578.97

Finding the Fourth Proportional to 1,780,061.28, 2,455,880.30 and 1,005,578.97

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Solution

The fourth proportional to 1,780,061.28, 2,455,880.30 and 1,005,578.97 is: 1,387,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,061.28 : 2,455,880.30 = 1,005,578.97 : x
  2. Step 2: Convert to fraction form
    1,780,061.28/2,455,880.30 = 1,005,578.97/x
  3. Step 3: Cross multiply
    1,780,061.28x = 2,455,880.30 × 1,005,578.97
  4. Step 4: Simplify right side
    1,780,061.28x = 2,469,581,577,489.40
  5. Step 5: Solve for x
    x = 2,469,581,577,489.40/1,780,061.28
  6. Step 6: Final answer
    x = 1,387,357.62

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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.