Home / 491,054.28-677,600.08-276,189.76

Finding the Fourth Proportional to 491,054.28, 677,600.08 and 276,189.76

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Solution

The fourth proportional to 491,054.28, 677,600.08 and 276,189.76 is: 381,111.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,054.28 : 677,600.08 = 276,189.76 : x
  2. Step 2: Convert to fraction form
    491,054.28/677,600.08 = 276,189.76/x
  3. Step 3: Cross multiply
    491,054.28x = 677,600.08 × 276,189.76
  4. Step 4: Simplify right side
    491,054.28x = 187,146,203,471.18
  5. Step 5: Solve for x
    x = 187,146,203,471.18/491,054.28
  6. Step 6: Final answer
    x = 381,111.03

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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.