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Finding the Fourth Proportional to 808,568.10, 1,212,960.15 and 275,955.30

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Solution

The fourth proportional to 808,568.10, 1,212,960.15 and 275,955.30 is: 413,969.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,568.10 : 1,212,960.15 = 275,955.30 : x
  2. Step 2: Convert to fraction form
    808,568.10/1,212,960.15 = 275,955.30/x
  3. Step 3: Cross multiply
    808,568.10x = 1,212,960.15 × 275,955.30
  4. Step 4: Simplify right side
    808,568.10x = 334,722,782,081.30
  5. Step 5: Solve for x
    x = 334,722,782,081.30/808,568.10
  6. Step 6: Final answer
    x = 413,969.81

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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.