Home / 1,015,576.89-1,400,678.87-892,806.78

Finding the Fourth Proportional to 1,015,576.89, 1,400,678.87 and 892,806.78

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Solution

The fourth proportional to 1,015,576.89, 1,400,678.87 and 892,806.78 is: 1,231,354.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,576.89 : 1,400,678.87 = 892,806.78 : x
  2. Step 2: Convert to fraction form
    1,015,576.89/1,400,678.87 = 892,806.78/x
  3. Step 3: Cross multiply
    1,015,576.89x = 1,400,678.87 × 892,806.78
  4. Step 4: Simplify right side
    1,015,576.89x = 1,250,535,591,738.74
  5. Step 5: Solve for x
    x = 1,250,535,591,738.74/1,015,576.89
  6. Step 6: Final answer
    x = 1,231,354.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.