Home / 827,206.20-1,240,809.30-691,903.80

Finding the Fourth Proportional to 827,206.20, 1,240,809.30 and 691,903.80

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Solution

The fourth proportional to 827,206.20, 1,240,809.30 and 691,903.80 is: 1,037,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,206.20 : 1,240,809.30 = 691,903.80 : x
  2. Step 2: Convert to fraction form
    827,206.20/1,240,809.30 = 691,903.80/x
  3. Step 3: Cross multiply
    827,206.20x = 1,240,809.30 × 691,903.80
  4. Step 4: Simplify right side
    827,206.20x = 858,520,669,745.34
  5. Step 5: Solve for x
    x = 858,520,669,745.34/827,206.20
  6. Step 6: Final answer
    x = 1,037,855.70

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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.