Home / 489,569.29-676,036.46-306,122.24

Finding the Fourth Proportional to 489,569.29, 676,036.46 and 306,122.24

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Solution

The fourth proportional to 489,569.29, 676,036.46 and 306,122.24 is: 422,718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,569.29 : 676,036.46 = 306,122.24 : x
  2. Step 2: Convert to fraction form
    489,569.29/676,036.46 = 306,122.24/x
  3. Step 3: Cross multiply
    489,569.29x = 676,036.46 × 306,122.24
  4. Step 4: Simplify right side
    489,569.29x = 206,949,795,456.87
  5. Step 5: Solve for x
    x = 206,949,795,456.87/489,569.29
  6. Step 6: Final answer
    x = 422,718.09

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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.