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Finding the Fourth Proportional to 649.03, 895.52 and 425.29

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Solution

The fourth proportional to 649.03, 895.52 and 425.29 is: 586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.03 : 895.52 = 425.29 : x
  2. Step 2: Convert to fraction form
    649.03/895.52 = 425.29/x
  3. Step 3: Cross multiply
    649.03x = 895.52 × 425.29
  4. Step 4: Simplify right side
    649.03x = 380,855.70
  5. Step 5: Solve for x
    x = 380,855.70/649.03
  6. Step 6: Final answer
    x = 586.81

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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.