Home / 1,149,439.50-1,586,275.71-640,141.88

Finding the Fourth Proportional to 1,149,439.50, 1,586,275.71 and 640,141.88

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Solution

The fourth proportional to 1,149,439.50, 1,586,275.71 and 640,141.88 is: 883,423.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,439.50 : 1,586,275.71 = 640,141.88 : x
  2. Step 2: Convert to fraction form
    1,149,439.50/1,586,275.71 = 640,141.88/x
  3. Step 3: Cross multiply
    1,149,439.50x = 1,586,275.71 × 640,141.88
  4. Step 4: Simplify right side
    1,149,439.50x = 1,015,441,511,232.05
  5. Step 5: Solve for x
    x = 1,015,441,511,232.05/1,149,439.50
  6. Step 6: Final answer
    x = 883,423.19

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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.