Home / 816,013.80-1,224,020.70-739,906.20

Finding the Fourth Proportional to 816,013.80, 1,224,020.70 and 739,906.20

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Solution

The fourth proportional to 816,013.80, 1,224,020.70 and 739,906.20 is: 1,109,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,013.80 : 1,224,020.70 = 739,906.20 : x
  2. Step 2: Convert to fraction form
    816,013.80/1,224,020.70 = 739,906.20/x
  3. Step 3: Cross multiply
    816,013.80x = 1,224,020.70 × 739,906.20
  4. Step 4: Simplify right side
    816,013.80x = 905,660,504,858.34
  5. Step 5: Solve for x
    x = 905,660,504,858.34/816,013.80
  6. Step 6: Final answer
    x = 1,109,859.30

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Double scale
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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.