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Finding the Fourth Proportional to 895.56, 1,343.12 and 634.80

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Solution

The fourth proportional to 895.56, 1,343.12 and 634.80 is: 952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.56 : 1,343.12 = 634.80 : x
  2. Step 2: Convert to fraction form
    895.56/1,343.12 = 634.80/x
  3. Step 3: Cross multiply
    895.56x = 1,343.12 × 634.80
  4. Step 4: Simplify right side
    895.56x = 852,614.44
  5. Step 5: Solve for x
    x = 852,614.44/895.56
  6. Step 6: Final answer
    x = 952.05

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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.