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Finding the Fourth Proportional to 649.48, 895.84 and 483.88

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Solution

The fourth proportional to 649.48, 895.84 and 483.88 is: 667.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.48 : 895.84 = 483.88 : x
  2. Step 2: Convert to fraction form
    649.48/895.84 = 483.88/x
  3. Step 3: Cross multiply
    649.48x = 895.84 × 483.88
  4. Step 4: Simplify right side
    649.48x = 433,479.06
  5. Step 5: Solve for x
    x = 433,479.06/649.48
  6. Step 6: Final answer
    x = 667.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.