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Finding the Fourth Proportional to 941.43, 1,298.84 and 527.43

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Solution

The fourth proportional to 941.43, 1,298.84 and 527.43 is: 727.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.43 : 1,298.84 = 527.43 : x
  2. Step 2: Convert to fraction form
    941.43/1,298.84 = 527.43/x
  3. Step 3: Cross multiply
    941.43x = 1,298.84 × 527.43
  4. Step 4: Simplify right side
    941.43x = 685,044.54
  5. Step 5: Solve for x
    x = 685,044.54/941.43
  6. Step 6: Final answer
    x = 727.66

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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.