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Finding the Fourth Proportional to 631.20, 875.01 and 598.32

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Solution

The fourth proportional to 631.20, 875.01 and 598.32 is: 829.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.20 : 875.01 = 598.32 : x
  2. Step 2: Convert to fraction form
    631.20/875.01 = 598.32/x
  3. Step 3: Cross multiply
    631.20x = 875.01 × 598.32
  4. Step 4: Simplify right side
    631.20x = 523,535.98
  5. Step 5: Solve for x
    x = 523,535.98/631.20
  6. Step 6: Final answer
    x = 829.43

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.