Home / 827,107.80-1,240,661.70-792,115.80

Finding the Fourth Proportional to 827,107.80, 1,240,661.70 and 792,115.80

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Solution

The fourth proportional to 827,107.80, 1,240,661.70 and 792,115.80 is: 1,188,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,107.80 : 1,240,661.70 = 792,115.80 : x
  2. Step 2: Convert to fraction form
    827,107.80/1,240,661.70 = 792,115.80/x
  3. Step 3: Cross multiply
    827,107.80x = 1,240,661.70 × 792,115.80
  4. Step 4: Simplify right side
    827,107.80x = 982,747,735,024.86
  5. Step 5: Solve for x
    x = 982,747,735,024.86/827,107.80
  6. Step 6: Final answer
    x = 1,188,173.70

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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.