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Finding the Fourth Proportional to 894.03, 1,232.08 and 644.92

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Solution

The fourth proportional to 894.03, 1,232.08 and 644.92 is: 888.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.03 : 1,232.08 = 644.92 : x
  2. Step 2: Convert to fraction form
    894.03/1,232.08 = 644.92/x
  3. Step 3: Cross multiply
    894.03x = 1,232.08 × 644.92
  4. Step 4: Simplify right side
    894.03x = 794,593.03
  5. Step 5: Solve for x
    x = 794,593.03/894.03
  6. Step 6: Final answer
    x = 888.78

Related Problems

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Half scale
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Double scale
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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.