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Finding the Fourth Proportional to 702.83, 969.50 and 440.39

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Solution

The fourth proportional to 702.83, 969.50 and 440.39 is: 607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.83 : 969.50 = 440.39 : x
  2. Step 2: Convert to fraction form
    702.83/969.50 = 440.39/x
  3. Step 3: Cross multiply
    702.83x = 969.50 × 440.39
  4. Step 4: Simplify right side
    702.83x = 426,951.06
  5. Step 5: Solve for x
    x = 426,951.06/702.83
  6. Step 6: Final answer
    x = 607.48

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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.