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Finding the Fourth Proportional to 945.29, 1,304.37 and 525.62

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Solution

The fourth proportional to 945.29, 1,304.37 and 525.62 is: 725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    945.29 : 1,304.37 = 525.62 : x
  2. Step 2: Convert to fraction form
    945.29/1,304.37 = 525.62/x
  3. Step 3: Cross multiply
    945.29x = 1,304.37 × 525.62
  4. Step 4: Simplify right side
    945.29x = 685,606.22
  5. Step 5: Solve for x
    x = 685,606.22/945.29
  6. Step 6: Final answer
    x = 725.28

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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.