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Finding the Fourth Proportional to 832.42, 1,248.50 and 523.32

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Solution

The fourth proportional to 832.42, 1,248.50 and 523.32 is: 784.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.42 : 1,248.50 = 523.32 : x
  2. Step 2: Convert to fraction form
    832.42/1,248.50 = 523.32/x
  3. Step 3: Cross multiply
    832.42x = 1,248.50 × 523.32
  4. Step 4: Simplify right side
    832.42x = 653,365.02
  5. Step 5: Solve for x
    x = 653,365.02/832.42
  6. Step 6: Final answer
    x = 784.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.