Home / 2,612,945.60-3,919,416.94-815,983.07

Finding the Fourth Proportional to 2,612,945.60, 3,919,416.94 and 815,983.07

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Solution

The fourth proportional to 2,612,945.60, 3,919,416.94 and 815,983.07 is: 1,223,974.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,945.60 : 3,919,416.94 = 815,983.07 : x
  2. Step 2: Convert to fraction form
    2,612,945.60/3,919,416.94 = 815,983.07/x
  3. Step 3: Cross multiply
    2,612,945.60x = 3,919,416.94 × 815,983.07
  4. Step 4: Simplify right side
    2,612,945.60x = 3,198,177,875,069.79
  5. Step 5: Solve for x
    x = 3,198,177,875,069.79/2,612,945.60
  6. Step 6: Final answer
    x = 1,223,974.15

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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.