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Finding the Fourth Proportional to 468.60, 698.91 and 460.39

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Solution

The fourth proportional to 468.60, 698.91 and 460.39 is: 686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.60 : 698.91 = 460.39 : x
  2. Step 2: Convert to fraction form
    468.60/698.91 = 460.39/x
  3. Step 3: Cross multiply
    468.60x = 698.91 × 460.39
  4. Step 4: Simplify right side
    468.60x = 321,771.17
  5. Step 5: Solve for x
    x = 321,771.17/468.60
  6. Step 6: Final answer
    x = 686.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.