Home / 727,621.28-1,092,114.48-447,685.28

Finding the Fourth Proportional to 727,621.28, 1,092,114.48 and 447,685.28

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Solution

The fourth proportional to 727,621.28, 1,092,114.48 and 447,685.28 is: 671,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,621.28 : 1,092,114.48 = 447,685.28 : x
  2. Step 2: Convert to fraction form
    727,621.28/1,092,114.48 = 447,685.28/x
  3. Step 3: Cross multiply
    727,621.28x = 1,092,114.48 × 447,685.28
  4. Step 4: Simplify right side
    727,621.28x = 488,923,576,770.85
  5. Step 5: Solve for x
    x = 488,923,576,770.85/727,621.28
  6. Step 6: Final answer
    x = 671,947.88

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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.