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Finding the Fourth Proportional to 593.63, 819.63 and 397.72

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Solution

The fourth proportional to 593.63, 819.63 and 397.72 is: 549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.63 : 819.63 = 397.72 : x
  2. Step 2: Convert to fraction form
    593.63/819.63 = 397.72/x
  3. Step 3: Cross multiply
    593.63x = 819.63 × 397.72
  4. Step 4: Simplify right side
    593.63x = 325,977.16
  5. Step 5: Solve for x
    x = 325,977.16/593.63
  6. Step 6: Final answer
    x = 549.13

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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.