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Finding the Fourth Proportional to 945.44, 1,304.52 and 552.39

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Solution

The fourth proportional to 945.44, 1,304.52 and 552.39 is: 762.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    945.44 : 1,304.52 = 552.39 : x
  2. Step 2: Convert to fraction form
    945.44/1,304.52 = 552.39/x
  3. Step 3: Cross multiply
    945.44x = 1,304.52 × 552.39
  4. Step 4: Simplify right side
    945.44x = 720,603.80
  5. Step 5: Solve for x
    x = 720,603.80/945.44
  6. Step 6: Final answer
    x = 762.19

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Half scale
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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.