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Finding the Fourth Proportional to 396,254.96, 591,261.78 and 372,146.96

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Solution

The fourth proportional to 396,254.96, 591,261.78 and 372,146.96 is: 555,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,254.96 : 591,261.78 = 372,146.96 : x
  2. Step 2: Convert to fraction form
    396,254.96/591,261.78 = 372,146.96/x
  3. Step 3: Cross multiply
    396,254.96x = 591,261.78 × 372,146.96
  4. Step 4: Simplify right side
    396,254.96x = 220,036,273,991.19
  5. Step 5: Solve for x
    x = 220,036,273,991.19/396,254.96
  6. Step 6: Final answer
    x = 555,289.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.