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Finding the Fourth Proportional to 491,540.56, 737,310.50 and 281,030.84

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Solution

The fourth proportional to 491,540.56, 737,310.50 and 281,030.84 is: 421,546.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,540.56 : 737,310.50 = 281,030.84 : x
  2. Step 2: Convert to fraction form
    491,540.56/737,310.50 = 281,030.84/x
  3. Step 3: Cross multiply
    491,540.56x = 737,310.50 × 281,030.84
  4. Step 4: Simplify right side
    491,540.56x = 207,206,989,155.82
  5. Step 5: Solve for x
    x = 207,206,989,155.82/491,540.56
  6. Step 6: Final answer
    x = 421,546.07

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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.