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Finding the Fourth Proportional to 654,437.40, 981,720.90 and 227,907.60

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Solution

The fourth proportional to 654,437.40, 981,720.90 and 227,907.60 is: 341,883.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,437.40 : 981,720.90 = 227,907.60 : x
  2. Step 2: Convert to fraction form
    654,437.40/981,720.90 = 227,907.60/x
  3. Step 3: Cross multiply
    654,437.40x = 981,720.90 × 227,907.60
  4. Step 4: Simplify right side
    654,437.40x = 223,741,654,188.84
  5. Step 5: Solve for x
    x = 223,741,654,188.84/654,437.40
  6. Step 6: Final answer
    x = 341,883.97

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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.