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Finding the Fourth Proportional to 746.04, 1,118.58 and 636.38

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Solution

The fourth proportional to 746.04, 1,118.58 and 636.38 is: 954.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.04 : 1,118.58 = 636.38 : x
  2. Step 2: Convert to fraction form
    746.04/1,118.58 = 636.38/x
  3. Step 3: Cross multiply
    746.04x = 1,118.58 × 636.38
  4. Step 4: Simplify right side
    746.04x = 711,841.94
  5. Step 5: Solve for x
    x = 711,841.94/746.04
  6. Step 6: Final answer
    x = 954.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.