Home / 814,253.20-1,221,379.80-693,530.80

Finding the Fourth Proportional to 814,253.20, 1,221,379.80 and 693,530.80

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Solution

The fourth proportional to 814,253.20, 1,221,379.80 and 693,530.80 is: 1,040,296.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,253.20 : 1,221,379.80 = 693,530.80 : x
  2. Step 2: Convert to fraction form
    814,253.20/1,221,379.80 = 693,530.80/x
  3. Step 3: Cross multiply
    814,253.20x = 1,221,379.80 × 693,530.80
  4. Step 4: Simplify right side
    814,253.20x = 847,064,509,797.84
  5. Step 5: Solve for x
    x = 847,064,509,797.84/814,253.20
  6. Step 6: Final answer
    x = 1,040,296.20

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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.