Home / 490,965.20-677,147.75-336,008.35

Finding the Fourth Proportional to 490,965.20, 677,147.75 and 336,008.35

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Solution

The fourth proportional to 490,965.20, 677,147.75 and 336,008.35 is: 463,428.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,965.20 : 677,147.75 = 336,008.35 : x
  2. Step 2: Convert to fraction form
    490,965.20/677,147.75 = 336,008.35/x
  3. Step 3: Cross multiply
    490,965.20x = 677,147.75 × 336,008.35
  4. Step 4: Simplify right side
    490,965.20x = 227,527,298,610.14
  5. Step 5: Solve for x
    x = 227,527,298,610.14/490,965.20
  6. Step 6: Final answer
    x = 463,428.57

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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.