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Finding the Fourth Proportional to 668.34, 1,002.27 and 524.34

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Solution

The fourth proportional to 668.34, 1,002.27 and 524.34 is: 786.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    668.34 : 1,002.27 = 524.34 : x
  2. Step 2: Convert to fraction form
    668.34/1,002.27 = 524.34/x
  3. Step 3: Cross multiply
    668.34x = 1,002.27 × 524.34
  4. Step 4: Simplify right side
    668.34x = 525,530.25
  5. Step 5: Solve for x
    x = 525,530.25/668.34
  6. Step 6: Final answer
    x = 786.32

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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.