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Finding the Fourth Proportional to 943.82, 1,302.38 and 524.16

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Solution

The fourth proportional to 943.82, 1,302.38 and 524.16 is: 723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.82 : 1,302.38 = 524.16 : x
  2. Step 2: Convert to fraction form
    943.82/1,302.38 = 524.16/x
  3. Step 3: Cross multiply
    943.82x = 1,302.38 × 524.16
  4. Step 4: Simplify right side
    943.82x = 682,655.50
  5. Step 5: Solve for x
    x = 682,655.50/943.82
  6. Step 6: Final answer
    x = 723.29

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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.