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Finding the Fourth Proportional to 852,924.64, 1,279,380.42 and 347,366.68

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Solution

The fourth proportional to 852,924.64, 1,279,380.42 and 347,366.68 is: 521,047.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,924.64 : 1,279,380.42 = 347,366.68 : x
  2. Step 2: Convert to fraction form
    852,924.64/1,279,380.42 = 347,366.68/x
  3. Step 3: Cross multiply
    852,924.64x = 1,279,380.42 × 347,366.68
  4. Step 4: Simplify right side
    852,924.64x = 444,414,128,952.41
  5. Step 5: Solve for x
    x = 444,414,128,952.41/852,924.64
  6. Step 6: Final answer
    x = 521,047.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.