Home / 3,415,998.80-5,123,998.20-891,654.06

Finding the Fourth Proportional to 3,415,998.80, 5,123,998.20 and 891,654.06

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Solution

The fourth proportional to 3,415,998.80, 5,123,998.20 and 891,654.06 is: 1,337,481.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415,998.80 : 5,123,998.20 = 891,654.06 : x
  2. Step 2: Convert to fraction form
    3,415,998.80/5,123,998.20 = 891,654.06/x
  3. Step 3: Cross multiply
    3,415,998.80x = 5,123,998.20 × 891,654.06
  4. Step 4: Simplify right side
    3,415,998.80x = 4,568,833,798,462.69
  5. Step 5: Solve for x
    x = 4,568,833,798,462.69/3,415,998.80
  6. Step 6: Final answer
    x = 1,337,481.09

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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.