Home / 490,112.26-676,275.54-306,329.16

Finding the Fourth Proportional to 490,112.26, 676,275.54 and 306,329.16

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Solution

The fourth proportional to 490,112.26, 676,275.54 and 306,329.16 is: 422,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,112.26 : 676,275.54 = 306,329.16 : x
  2. Step 2: Convert to fraction form
    490,112.26/676,275.54 = 306,329.16/x
  3. Step 3: Cross multiply
    490,112.26x = 676,275.54 × 306,329.16
  4. Step 4: Simplify right side
    490,112.26x = 207,162,918,096.75
  5. Step 5: Solve for x
    x = 207,162,918,096.75/490,112.26
  6. Step 6: Final answer
    x = 422,684.63

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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.