Home / 815,857.80-1,223,786.70-733,189.20

Finding the Fourth Proportional to 815,857.80, 1,223,786.70 and 733,189.20

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Solution

The fourth proportional to 815,857.80, 1,223,786.70 and 733,189.20 is: 1,099,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,857.80 : 1,223,786.70 = 733,189.20 : x
  2. Step 2: Convert to fraction form
    815,857.80/1,223,786.70 = 733,189.20/x
  3. Step 3: Cross multiply
    815,857.80x = 1,223,786.70 × 733,189.20
  4. Step 4: Simplify right side
    815,857.80x = 897,267,191,543.64
  5. Step 5: Solve for x
    x = 897,267,191,543.64/815,857.80
  6. Step 6: Final answer
    x = 1,099,783.80

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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.