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Finding the Fourth Proportional to 675.69, 932.62 and 440.22

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Solution

The fourth proportional to 675.69, 932.62 and 440.22 is: 607.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.69 : 932.62 = 440.22 : x
  2. Step 2: Convert to fraction form
    675.69/932.62 = 440.22/x
  3. Step 3: Cross multiply
    675.69x = 932.62 × 440.22
  4. Step 4: Simplify right side
    675.69x = 410,557.98
  5. Step 5: Solve for x
    x = 410,557.98/675.69
  6. Step 6: Final answer
    x = 607.61

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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.