Home / 490,704.03-677,685.62-338,138.91

Finding the Fourth Proportional to 490,704.03, 677,685.62 and 338,138.91

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Solution

The fourth proportional to 490,704.03, 677,685.62 and 338,138.91 is: 466,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,704.03 : 677,685.62 = 338,138.91 : x
  2. Step 2: Convert to fraction form
    490,704.03/677,685.62 = 338,138.91/x
  3. Step 3: Cross multiply
    490,704.03x = 677,685.62 × 338,138.91
  4. Step 4: Simplify right side
    490,704.03x = 229,151,875,178.78
  5. Step 5: Solve for x
    x = 229,151,875,178.78/490,704.03
  6. Step 6: Final answer
    x = 466,985.92

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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.