Home / 1,976,945.40-2,965,418.10-778,906.80

Finding the Fourth Proportional to 1,976,945.40, 2,965,418.10 and 778,906.80

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Solution

The fourth proportional to 1,976,945.40, 2,965,418.10 and 778,906.80 is: 1,168,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,945.40 : 2,965,418.10 = 778,906.80 : x
  2. Step 2: Convert to fraction form
    1,976,945.40/2,965,418.10 = 778,906.80/x
  3. Step 3: Cross multiply
    1,976,945.40x = 2,965,418.10 × 778,906.80
  4. Step 4: Simplify right side
    1,976,945.40x = 2,309,784,322,933.08
  5. Step 5: Solve for x
    x = 2,309,784,322,933.08/1,976,945.40
  6. Step 6: Final answer
    x = 1,168,360.20

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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.