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Finding the Fourth Proportional to 654.53, 895.23 and 644.81

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Solution

The fourth proportional to 654.53, 895.23 and 644.81 is: 881.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.53 : 895.23 = 644.81 : x
  2. Step 2: Convert to fraction form
    654.53/895.23 = 644.81/x
  3. Step 3: Cross multiply
    654.53x = 895.23 × 644.81
  4. Step 4: Simplify right side
    654.53x = 577,248.78
  5. Step 5: Solve for x
    x = 577,248.78/654.53
  6. Step 6: Final answer
    x = 881.94

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.