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Finding the Fourth Proportional to 506.75, 702.50 and 479.03

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Solution

The fourth proportional to 506.75, 702.50 and 479.03 is: 664.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.75 : 702.50 = 479.03 : x
  2. Step 2: Convert to fraction form
    506.75/702.50 = 479.03/x
  3. Step 3: Cross multiply
    506.75x = 702.50 × 479.03
  4. Step 4: Simplify right side
    506.75x = 336,521.53
  5. Step 5: Solve for x
    x = 336,521.53/506.75
  6. Step 6: Final answer
    x = 664.08

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.