Home / 423,961.24-634,557.30-311,611.72

Finding the Fourth Proportional to 423,961.24, 634,557.30 and 311,611.72

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Solution

The fourth proportional to 423,961.24, 634,557.30 and 311,611.72 is: 466,399.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,961.24 : 634,557.30 = 311,611.72 : x
  2. Step 2: Convert to fraction form
    423,961.24/634,557.30 = 311,611.72/x
  3. Step 3: Cross multiply
    423,961.24x = 634,557.30 × 311,611.72
  4. Step 4: Simplify right side
    423,961.24x = 197,735,491,691.56
  5. Step 5: Solve for x
    x = 197,735,491,691.56/423,961.24
  6. Step 6: Final answer
    x = 466,399.93

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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.