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Finding the Fourth Proportional to 747.83, 1,121.75 and 633.02

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Solution

The fourth proportional to 747.83, 1,121.75 and 633.02 is: 949.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    747.83 : 1,121.75 = 633.02 : x
  2. Step 2: Convert to fraction form
    747.83/1,121.75 = 633.02/x
  3. Step 3: Cross multiply
    747.83x = 1,121.75 × 633.02
  4. Step 4: Simplify right side
    747.83x = 710,083.78
  5. Step 5: Solve for x
    x = 710,083.78/747.83
  6. Step 6: Final answer
    x = 949.52

Related Problems

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Double scale
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1.5x scale

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.