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Finding the Fourth Proportional to 702,288.97, 969,151.86 and 379,992

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Solution

The fourth proportional to 702,288.97, 969,151.86 and 379,992 is: 524,385.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,288.97 : 969,151.86 = 379,992 : x
  2. Step 2: Convert to fraction form
    702,288.97/969,151.86 = 379,992/x
  3. Step 3: Cross multiply
    702,288.97x = 969,151.86 × 379,992
  4. Step 4: Simplify right side
    702,288.97x = 368,269,953,585.12
  5. Step 5: Solve for x
    x = 368,269,953,585.12/702,288.97
  6. Step 6: Final answer
    x = 524,385.22

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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.