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Finding the Fourth Proportional to 702,769.08, 969,837.72 and 396,943.92

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Solution

The fourth proportional to 702,769.08, 969,837.72 and 396,943.92 is: 547,791.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,769.08 : 969,837.72 = 396,943.92 : x
  2. Step 2: Convert to fraction form
    702,769.08/969,837.72 = 396,943.92/x
  3. Step 3: Cross multiply
    702,769.08x = 969,837.72 × 396,943.92
  4. Step 4: Simplify right side
    702,769.08x = 384,971,186,340.66
  5. Step 5: Solve for x
    x = 384,971,186,340.66/702,769.08
  6. Step 6: Final answer
    x = 547,791.87

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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.