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Finding the Fourth Proportional to 498.04, 746.42 and 440.04

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Solution

The fourth proportional to 498.04, 746.42 and 440.04 is: 659.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.04 : 746.42 = 440.04 : x
  2. Step 2: Convert to fraction form
    498.04/746.42 = 440.04/x
  3. Step 3: Cross multiply
    498.04x = 746.42 × 440.04
  4. Step 4: Simplify right side
    498.04x = 328,454.66
  5. Step 5: Solve for x
    x = 328,454.66/498.04
  6. Step 6: Final answer
    x = 659.49

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.