Home / 871,146.38-1,306,768.77-310,180.88

Finding the Fourth Proportional to 871,146.38, 1,306,768.77 and 310,180.88

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Solution

The fourth proportional to 871,146.38, 1,306,768.77 and 310,180.88 is: 465,288.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,146.38 : 1,306,768.77 = 310,180.88 : x
  2. Step 2: Convert to fraction form
    871,146.38/1,306,768.77 = 310,180.88/x
  3. Step 3: Cross multiply
    871,146.38x = 1,306,768.77 × 310,180.88
  4. Step 4: Simplify right side
    871,146.38x = 405,334,680,501.27
  5. Step 5: Solve for x
    x = 405,334,680,501.27/871,146.38
  6. Step 6: Final answer
    x = 465,288.83

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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.