Home / 1,149,439.28-1,586,275.41-640,141.65

Finding the Fourth Proportional to 1,149,439.28, 1,586,275.41 and 640,141.65

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Solution

The fourth proportional to 1,149,439.28, 1,586,275.41 and 640,141.65 is: 883,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,439.28 : 1,586,275.41 = 640,141.65 : x
  2. Step 2: Convert to fraction form
    1,149,439.28/1,586,275.41 = 640,141.65/x
  3. Step 3: Cross multiply
    1,149,439.28x = 1,586,275.41 × 640,141.65
  4. Step 4: Simplify right side
    1,149,439.28x = 1,015,440,958,311.83
  5. Step 5: Solve for x
    x = 1,015,440,958,311.83/1,149,439.28
  6. Step 6: Final answer
    x = 883,422.88

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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.