Home / 727,816.80-1,091,725.20-443,215.20

Finding the Fourth Proportional to 727,816.80, 1,091,725.20 and 443,215.20

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Solution

The fourth proportional to 727,816.80, 1,091,725.20 and 443,215.20 is: 664,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,816.80 : 1,091,725.20 = 443,215.20 : x
  2. Step 2: Convert to fraction form
    727,816.80/1,091,725.20 = 443,215.20/x
  3. Step 3: Cross multiply
    727,816.80x = 1,091,725.20 × 443,215.20
  4. Step 4: Simplify right side
    727,816.80x = 483,869,202,863.04
  5. Step 5: Solve for x
    x = 483,869,202,863.04/727,816.80
  6. Step 6: Final answer
    x = 664,822.80

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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.