Home / 813,834.80-1,220,867.40-252,810.80

Finding the Fourth Proportional to 813,834.80, 1,220,867.40 and 252,810.80

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Solution

The fourth proportional to 813,834.80, 1,220,867.40 and 252,810.80 is: 379,251.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,834.80 : 1,220,867.40 = 252,810.80 : x
  2. Step 2: Convert to fraction form
    813,834.80/1,220,867.40 = 252,810.80/x
  3. Step 3: Cross multiply
    813,834.80x = 1,220,867.40 × 252,810.80
  4. Step 4: Simplify right side
    813,834.80x = 308,648,464,087.92
  5. Step 5: Solve for x
    x = 308,648,464,087.92/813,834.80
  6. Step 6: Final answer
    x = 379,251.99

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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.