Home / 2,578,691.28-3,868,165.41-981,378.17

Finding the Fourth Proportional to 2,578,691.28, 3,868,165.41 and 981,378.17

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Solution

The fourth proportional to 2,578,691.28, 3,868,165.41 and 981,378.17 is: 1,472,116.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,691.28 : 3,868,165.41 = 981,378.17 : x
  2. Step 2: Convert to fraction form
    2,578,691.28/3,868,165.41 = 981,378.17/x
  3. Step 3: Cross multiply
    2,578,691.28x = 3,868,165.41 × 981,378.17
  4. Step 4: Simplify right side
    2,578,691.28x = 3,796,133,080,818.15
  5. Step 5: Solve for x
    x = 3,796,133,080,818.15/2,578,691.28
  6. Step 6: Final answer
    x = 1,472,116.15

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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.