Home / 815,179.80-1,222,769.70-739,072.20

Finding the Fourth Proportional to 815,179.80, 1,222,769.70 and 739,072.20

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Solution

The fourth proportional to 815,179.80, 1,222,769.70 and 739,072.20 is: 1,108,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,179.80 : 1,222,769.70 = 739,072.20 : x
  2. Step 2: Convert to fraction form
    815,179.80/1,222,769.70 = 739,072.20/x
  3. Step 3: Cross multiply
    815,179.80x = 1,222,769.70 × 739,072.20
  4. Step 4: Simplify right side
    815,179.80x = 903,715,092,272.34
  5. Step 5: Solve for x
    x = 903,715,092,272.34/815,179.80
  6. Step 6: Final answer
    x = 1,108,608.30

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1.5x scale

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.