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Finding the Fourth Proportional to 895.89, 1,344.17 and 621.84

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Solution

The fourth proportional to 895.89, 1,344.17 and 621.84 is: 932.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.89 : 1,344.17 = 621.84 : x
  2. Step 2: Convert to fraction form
    895.89/1,344.17 = 621.84/x
  3. Step 3: Cross multiply
    895.89x = 1,344.17 × 621.84
  4. Step 4: Simplify right side
    895.89x = 835,858.67
  5. Step 5: Solve for x
    x = 835,858.67/895.89
  6. Step 6: Final answer
    x = 932.99

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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.