Home / 871,147.38-1,306,770.27-310,181.88

Finding the Fourth Proportional to 871,147.38, 1,306,770.27 and 310,181.88

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Solution

The fourth proportional to 871,147.38, 1,306,770.27 and 310,181.88 is: 465,290.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,147.38 : 1,306,770.27 = 310,181.88 : x
  2. Step 2: Convert to fraction form
    871,147.38/1,306,770.27 = 310,181.88/x
  3. Step 3: Cross multiply
    871,147.38x = 1,306,770.27 × 310,181.88
  4. Step 4: Simplify right side
    871,147.38x = 405,336,459,076.71
  5. Step 5: Solve for x
    x = 405,336,459,076.71/871,147.38
  6. Step 6: Final answer
    x = 465,290.34

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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.