Home / 490,738.50-676,956.69-329,316.03

Finding the Fourth Proportional to 490,738.50, 676,956.69 and 329,316.03

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Solution

The fourth proportional to 490,738.50, 676,956.69 and 329,316.03 is: 454,280.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,738.50 : 676,956.69 = 329,316.03 : x
  2. Step 2: Convert to fraction form
    490,738.50/676,956.69 = 329,316.03/x
  3. Step 3: Cross multiply
    490,738.50x = 676,956.69 × 329,316.03
  4. Step 4: Simplify right side
    490,738.50x = 222,932,689,632.74
  5. Step 5: Solve for x
    x = 222,932,689,632.74/490,738.50
  6. Step 6: Final answer
    x = 454,280.01

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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.