Home / 1,386,144.80-2,079,217.20-851,933.60

Finding the Fourth Proportional to 1,386,144.80, 2,079,217.20 and 851,933.60

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Solution

The fourth proportional to 1,386,144.80, 2,079,217.20 and 851,933.60 is: 1,277,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,144.80 : 2,079,217.20 = 851,933.60 : x
  2. Step 2: Convert to fraction form
    1,386,144.80/2,079,217.20 = 851,933.60/x
  3. Step 3: Cross multiply
    1,386,144.80x = 2,079,217.20 × 851,933.60
  4. Step 4: Simplify right side
    1,386,144.80x = 1,771,354,994,377.92
  5. Step 5: Solve for x
    x = 1,771,354,994,377.92/1,386,144.80
  6. Step 6: Final answer
    x = 1,277,900.40

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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.