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Finding the Fourth Proportional to 892,660.52, 1,338,568.73 and 345,809.07

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Solution

The fourth proportional to 892,660.52, 1,338,568.73 and 345,809.07 is: 518,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,660.52 : 1,338,568.73 = 345,809.07 : x
  2. Step 2: Convert to fraction form
    892,660.52/1,338,568.73 = 345,809.07/x
  3. Step 3: Cross multiply
    892,660.52x = 1,338,568.73 × 345,809.07
  4. Step 4: Simplify right side
    892,660.52x = 462,889,203,441.44
  5. Step 5: Solve for x
    x = 462,889,203,441.44/892,660.52
  6. Step 6: Final answer
    x = 518,550.10

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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.