Home / 871,291.50-1,306,429.82-338,189.73

Finding the Fourth Proportional to 871,291.50, 1,306,429.82 and 338,189.73

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Solution

The fourth proportional to 871,291.50, 1,306,429.82 and 338,189.73 is: 507,087.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,291.50 : 1,306,429.82 = 338,189.73 : x
  2. Step 2: Convert to fraction form
    871,291.50/1,306,429.82 = 338,189.73/x
  3. Step 3: Cross multiply
    871,291.50x = 1,306,429.82 × 338,189.73
  4. Step 4: Simplify right side
    871,291.50x = 441,821,146,398.80
  5. Step 5: Solve for x
    x = 441,821,146,398.80/871,291.50
  6. Step 6: Final answer
    x = 507,087.64

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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.