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Finding the Fourth Proportional to 607.46, 837.85 and 397.31

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Solution

The fourth proportional to 607.46, 837.85 and 397.31 is: 547.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.46 : 837.85 = 397.31 : x
  2. Step 2: Convert to fraction form
    607.46/837.85 = 397.31/x
  3. Step 3: Cross multiply
    607.46x = 837.85 × 397.31
  4. Step 4: Simplify right side
    607.46x = 332,884.20
  5. Step 5: Solve for x
    x = 332,884.20/607.46
  6. Step 6: Final answer
    x = 547.99

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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.