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Finding the Fourth Proportional to 486.95, 733.03 and 436.72

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Solution

The fourth proportional to 486.95, 733.03 and 436.72 is: 657.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.95 : 733.03 = 436.72 : x
  2. Step 2: Convert to fraction form
    486.95/733.03 = 436.72/x
  3. Step 3: Cross multiply
    486.95x = 733.03 × 436.72
  4. Step 4: Simplify right side
    486.95x = 320,126.68
  5. Step 5: Solve for x
    x = 320,126.68/486.95
  6. Step 6: Final answer
    x = 657.41

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.