Home / 826,747.80-1,240,122.60-328,111.80

Finding the Fourth Proportional to 826,747.80, 1,240,122.60 and 328,111.80

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Solution

The fourth proportional to 826,747.80, 1,240,122.60 and 328,111.80 is: 492,168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,747.80 : 1,240,122.60 = 328,111.80 : x
  2. Step 2: Convert to fraction form
    826,747.80/1,240,122.60 = 328,111.80/x
  3. Step 3: Cross multiply
    826,747.80x = 1,240,122.60 × 328,111.80
  4. Step 4: Simplify right side
    826,747.80x = 406,898,858,506.68
  5. Step 5: Solve for x
    x = 406,898,858,506.68/826,747.80
  6. Step 6: Final answer
    x = 492,168.06

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Double scale
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Similar ratio
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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.