Home / 490,995.47-677,567.23-276,135.53

Finding the Fourth Proportional to 490,995.47, 677,567.23 and 276,135.53

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Solution

The fourth proportional to 490,995.47, 677,567.23 and 276,135.53 is: 381,063.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,995.47 : 677,567.23 = 276,135.53 : x
  2. Step 2: Convert to fraction form
    490,995.47/677,567.23 = 276,135.53/x
  3. Step 3: Cross multiply
    490,995.47x = 677,567.23 × 276,135.53
  4. Step 4: Simplify right side
    490,995.47x = 187,100,385,899.82
  5. Step 5: Solve for x
    x = 187,100,385,899.82/490,995.47
  6. Step 6: Final answer
    x = 381,063.36

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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.