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Finding the Fourth Proportional to 682.98, 943.05 and 525.38

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Solution

The fourth proportional to 682.98, 943.05 and 525.38 is: 725.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.98 : 943.05 = 525.38 : x
  2. Step 2: Convert to fraction form
    682.98/943.05 = 525.38/x
  3. Step 3: Cross multiply
    682.98x = 943.05 × 525.38
  4. Step 4: Simplify right side
    682.98x = 495,454.89
  5. Step 5: Solve for x
    x = 495,454.89/682.98
  6. Step 6: Final answer
    x = 725.43

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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.