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Finding the Fourth Proportional to 597.39, 824.12 and 387.63

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Solution

The fourth proportional to 597.39, 824.12 and 387.63 is: 534.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    597.39 : 824.12 = 387.63 : x
  2. Step 2: Convert to fraction form
    597.39/824.12 = 387.63/x
  3. Step 3: Cross multiply
    597.39x = 824.12 × 387.63
  4. Step 4: Simplify right side
    597.39x = 319,453.15
  5. Step 5: Solve for x
    x = 319,453.15/597.39
  6. Step 6: Final answer
    x = 534.75

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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.