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Finding the Fourth Proportional to 649.56, 894.88 and 452.76

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Solution

The fourth proportional to 649.56, 894.88 and 452.76 is: 623.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.56 : 894.88 = 452.76 : x
  2. Step 2: Convert to fraction form
    649.56/894.88 = 452.76/x
  3. Step 3: Cross multiply
    649.56x = 894.88 × 452.76
  4. Step 4: Simplify right side
    649.56x = 405,165.87
  5. Step 5: Solve for x
    x = 405,165.87/649.56
  6. Step 6: Final answer
    x = 623.75

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1.5x scale

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.