Home / 819,314.87-1,228,972.29-258,349.37

Finding the Fourth Proportional to 819,314.87, 1,228,972.29 and 258,349.37

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Solution

The fourth proportional to 819,314.87, 1,228,972.29 and 258,349.37 is: 387,524.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,314.87 : 1,228,972.29 = 258,349.37 : x
  2. Step 2: Convert to fraction form
    819,314.87/1,228,972.29 = 258,349.37/x
  3. Step 3: Cross multiply
    819,314.87x = 1,228,972.29 × 258,349.37
  4. Step 4: Simplify right side
    819,314.87x = 317,504,209,755.29
  5. Step 5: Solve for x
    x = 317,504,209,755.29/819,314.87
  6. Step 6: Final answer
    x = 387,524.04

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1.5x scale

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.