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Finding the Fourth Proportional to 677.03, 1,014.07 and 329.63

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Solution

The fourth proportional to 677.03, 1,014.07 and 329.63 is: 493.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.03 : 1,014.07 = 329.63 : x
  2. Step 2: Convert to fraction form
    677.03/1,014.07 = 329.63/x
  3. Step 3: Cross multiply
    677.03x = 1,014.07 × 329.63
  4. Step 4: Simplify right side
    677.03x = 334,267.89
  5. Step 5: Solve for x
    x = 334,267.89/677.03
  6. Step 6: Final answer
    x = 493.73

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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.