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Finding the Fourth Proportional to 736.76, 1,016.30 and 441.86

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Solution

The fourth proportional to 736.76, 1,016.30 and 441.86 is: 609.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.76 : 1,016.30 = 441.86 : x
  2. Step 2: Convert to fraction form
    736.76/1,016.30 = 441.86/x
  3. Step 3: Cross multiply
    736.76x = 1,016.30 × 441.86
  4. Step 4: Simplify right side
    736.76x = 449,062.32
  5. Step 5: Solve for x
    x = 449,062.32/736.76
  6. Step 6: Final answer
    x = 609.51

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Find fourth proportional to 368.38, 508.15 and 220.93
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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.