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Finding the Fourth Proportional to 671.03, 925.60 and 434.89

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Solution

The fourth proportional to 671.03, 925.60 and 434.89 is: 599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.03 : 925.60 = 434.89 : x
  2. Step 2: Convert to fraction form
    671.03/925.60 = 434.89/x
  3. Step 3: Cross multiply
    671.03x = 925.60 × 434.89
  4. Step 4: Simplify right side
    671.03x = 402,534.18
  5. Step 5: Solve for x
    x = 402,534.18/671.03
  6. Step 6: Final answer
    x = 599.88

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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.