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Finding the Fourth Proportional to 507.52, 699.72 and 437.28

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Solution

The fourth proportional to 507.52, 699.72 and 437.28 is: 602.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.52 : 699.72 = 437.28 : x
  2. Step 2: Convert to fraction form
    507.52/699.72 = 437.28/x
  3. Step 3: Cross multiply
    507.52x = 699.72 × 437.28
  4. Step 4: Simplify right side
    507.52x = 305,973.56
  5. Step 5: Solve for x
    x = 305,973.56/507.52
  6. Step 6: Final answer
    x = 602.88

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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.