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Finding the Fourth Proportional to 904.92, 1,248.56 and 573.38

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Solution

The fourth proportional to 904.92, 1,248.56 and 573.38 is: 791.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.92 : 1,248.56 = 573.38 : x
  2. Step 2: Convert to fraction form
    904.92/1,248.56 = 573.38/x
  3. Step 3: Cross multiply
    904.92x = 1,248.56 × 573.38
  4. Step 4: Simplify right side
    904.92x = 715,900.28
  5. Step 5: Solve for x
    x = 715,900.28/904.92
  6. Step 6: Final answer
    x = 791.12

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Double scale
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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.