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Finding the Fourth Proportional to 702.93, 967.74 and 668.30

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Solution

The fourth proportional to 702.93, 967.74 and 668.30 is: 920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.93 : 967.74 = 668.30 : x
  2. Step 2: Convert to fraction form
    702.93/967.74 = 668.30/x
  3. Step 3: Cross multiply
    702.93x = 967.74 × 668.30
  4. Step 4: Simplify right side
    702.93x = 646,740.64
  5. Step 5: Solve for x
    x = 646,740.64/702.93
  6. Step 6: Final answer
    x = 920.06

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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.