Home / 871,163.12-1,306,929.36-310,196

Finding the Fourth Proportional to 871,163.12, 1,306,929.36 and 310,196

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Solution

The fourth proportional to 871,163.12, 1,306,929.36 and 310,196 is: 465,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,163.12 : 1,306,929.36 = 310,196 : x
  2. Step 2: Convert to fraction form
    871,163.12/1,306,929.36 = 310,196/x
  3. Step 3: Cross multiply
    871,163.12x = 1,306,929.36 × 310,196
  4. Step 4: Simplify right side
    871,163.12x = 405,404,259,754.56
  5. Step 5: Solve for x
    x = 405,404,259,754.56/871,163.12
  6. Step 6: Final answer
    x = 465,359.76

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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.