Home / 389,072.28-583,614.18-108,591

Finding the Fourth Proportional to 389,072.28, 583,614.18 and 108,591

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Solution

The fourth proportional to 389,072.28, 583,614.18 and 108,591 is: 162,888.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,072.28 : 583,614.18 = 108,591 : x
  2. Step 2: Convert to fraction form
    389,072.28/583,614.18 = 108,591/x
  3. Step 3: Cross multiply
    389,072.28x = 583,614.18 × 108,591
  4. Step 4: Simplify right side
    389,072.28x = 63,375,247,420.38
  5. Step 5: Solve for x
    x = 63,375,247,420.38/389,072.28
  6. Step 6: Final answer
    x = 162,888.11

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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.