Home / 489,568.29-676,035.08-306,121.24

Finding the Fourth Proportional to 489,568.29, 676,035.08 and 306,121.24

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Solution

The fourth proportional to 489,568.29, 676,035.08 and 306,121.24 is: 422,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,568.29 : 676,035.08 = 306,121.24 : x
  2. Step 2: Convert to fraction form
    489,568.29/676,035.08 = 306,121.24/x
  3. Step 3: Cross multiply
    489,568.29x = 676,035.08 × 306,121.24
  4. Step 4: Simplify right side
    489,568.29x = 206,948,696,973.10
  5. Step 5: Solve for x
    x = 206,948,696,973.10/489,568.29
  6. Step 6: Final answer
    x = 422,716.71

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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.