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Finding the Fourth Proportional to 852,480, 1,278,743.04 and 261,504

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Solution

The fourth proportional to 852,480, 1,278,743.04 and 261,504 is: 392,263.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,480 : 1,278,743.04 = 261,504 : x
  2. Step 2: Convert to fraction form
    852,480/1,278,743.04 = 261,504/x
  3. Step 3: Cross multiply
    852,480x = 1,278,743.04 × 261,504
  4. Step 4: Simplify right side
    852,480x = 334,396,419,932.16
  5. Step 5: Solve for x
    x = 334,396,419,932.16/852,480
  6. Step 6: Final answer
    x = 392,263.07

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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.