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Finding the Fourth Proportional to 904.40, 1,248.26 and 573.27

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Solution

The fourth proportional to 904.40, 1,248.26 and 573.27 is: 791.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.40 : 1,248.26 = 573.27 : x
  2. Step 2: Convert to fraction form
    904.40/1,248.26 = 573.27/x
  3. Step 3: Cross multiply
    904.40x = 1,248.26 × 573.27
  4. Step 4: Simplify right side
    904.40x = 715,587.14
  5. Step 5: Solve for x
    x = 715,587.14/904.40
  6. Step 6: Final answer
    x = 791.23

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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.