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Finding the Fourth Proportional to 679.62, 935.69 and 604.58

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Solution

The fourth proportional to 679.62, 935.69 and 604.58 is: 832.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    679.62 : 935.69 = 604.58 : x
  2. Step 2: Convert to fraction form
    679.62/935.69 = 604.58/x
  3. Step 3: Cross multiply
    679.62x = 935.69 × 604.58
  4. Step 4: Simplify right side
    679.62x = 565,699.46
  5. Step 5: Solve for x
    x = 565,699.46/679.62
  6. Step 6: Final answer
    x = 832.38

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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.