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Finding the Fourth Proportional to 490,760.12, 677,250.02 and 275,901.95

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Solution

The fourth proportional to 490,760.12, 677,250.02 and 275,901.95 is: 380,745.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,760.12 : 677,250.02 = 275,901.95 : x
  2. Step 2: Convert to fraction form
    490,760.12/677,250.02 = 275,901.95/x
  3. Step 3: Cross multiply
    490,760.12x = 677,250.02 × 275,901.95
  4. Step 4: Simplify right side
    490,760.12x = 186,854,603,538.42
  5. Step 5: Solve for x
    x = 186,854,603,538.42/490,760.12
  6. Step 6: Final answer
    x = 380,745.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.