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Finding the Fourth Proportional to 702,251.06, 969,109.78 and 396,340.34

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Solution

The fourth proportional to 702,251.06, 969,109.78 and 396,340.34 is: 546,951.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,251.06 : 969,109.78 = 396,340.34 : x
  2. Step 2: Convert to fraction form
    702,251.06/969,109.78 = 396,340.34/x
  3. Step 3: Cross multiply
    702,251.06x = 969,109.78 × 396,340.34
  4. Step 4: Simplify right side
    702,251.06x = 384,097,299,702.53
  5. Step 5: Solve for x
    x = 384,097,299,702.53/702,251.06
  6. Step 6: Final answer
    x = 546,951.54

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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.