Home / 816,122.20-1,224,183.30-811,456.60

Finding the Fourth Proportional to 816,122.20, 1,224,183.30 and 811,456.60

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Solution

The fourth proportional to 816,122.20, 1,224,183.30 and 811,456.60 is: 1,217,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,122.20 : 1,224,183.30 = 811,456.60 : x
  2. Step 2: Convert to fraction form
    816,122.20/1,224,183.30 = 811,456.60/x
  3. Step 3: Cross multiply
    816,122.20x = 1,224,183.30 × 811,456.60
  4. Step 4: Simplify right side
    816,122.20x = 993,371,618,394.78
  5. Step 5: Solve for x
    x = 993,371,618,394.78/816,122.20
  6. Step 6: Final answer
    x = 1,217,184.90

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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.