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Finding the Fourth Proportional to 632.62, 873.21 and 612.10

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Solution

The fourth proportional to 632.62, 873.21 and 612.10 is: 844.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.62 : 873.21 = 612.10 : x
  2. Step 2: Convert to fraction form
    632.62/873.21 = 612.10/x
  3. Step 3: Cross multiply
    632.62x = 873.21 × 612.10
  4. Step 4: Simplify right side
    632.62x = 534,491.84
  5. Step 5: Solve for x
    x = 534,491.84/632.62
  6. Step 6: Final answer
    x = 844.89

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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.