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Finding the Fourth Proportional to 702,748.73, 969,781.66 and 380,456.21

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Solution

The fourth proportional to 702,748.73, 969,781.66 and 380,456.21 is: 525,023.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,748.73 : 969,781.66 = 380,456.21 : x
  2. Step 2: Convert to fraction form
    702,748.73/969,781.66 = 380,456.21/x
  3. Step 3: Cross multiply
    702,748.73x = 969,781.66 × 380,456.21
  4. Step 4: Simplify right side
    702,748.73x = 368,959,449,091.06
  5. Step 5: Solve for x
    x = 368,959,449,091.06/702,748.73
  6. Step 6: Final answer
    x = 525,023.29

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1.5x scale

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.