Home / 1,386,234.60-2,079,351.90-789,037.80

Finding the Fourth Proportional to 1,386,234.60, 2,079,351.90 and 789,037.80

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Solution

The fourth proportional to 1,386,234.60, 2,079,351.90 and 789,037.80 is: 1,183,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,234.60 : 2,079,351.90 = 789,037.80 : x
  2. Step 2: Convert to fraction form
    1,386,234.60/2,079,351.90 = 789,037.80/x
  3. Step 3: Cross multiply
    1,386,234.60x = 2,079,351.90 × 789,037.80
  4. Step 4: Simplify right side
    1,386,234.60x = 1,640,687,248,601.82
  5. Step 5: Solve for x
    x = 1,640,687,248,601.82/1,386,234.60
  6. Step 6: Final answer
    x = 1,183,556.70

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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.