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Finding the Fourth Proportional to 718.52, 986.77 and 601.88

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Solution

The fourth proportional to 718.52, 986.77 and 601.88 is: 826.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    718.52 : 986.77 = 601.88 : x
  2. Step 2: Convert to fraction form
    718.52/986.77 = 601.88/x
  3. Step 3: Cross multiply
    718.52x = 986.77 × 601.88
  4. Step 4: Simplify right side
    718.52x = 593,917.13
  5. Step 5: Solve for x
    x = 593,917.13/718.52
  6. Step 6: Final answer
    x = 826.58

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.