Home / 326,623.87-489,476.33-259,767.28

Finding the Fourth Proportional to 326,623.87, 489,476.33 and 259,767.28

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Solution

The fourth proportional to 326,623.87, 489,476.33 and 259,767.28 is: 389,285.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,623.87 : 489,476.33 = 259,767.28 : x
  2. Step 2: Convert to fraction form
    326,623.87/489,476.33 = 259,767.28/x
  3. Step 3: Cross multiply
    326,623.87x = 489,476.33 × 259,767.28
  4. Step 4: Simplify right side
    326,623.87x = 127,149,931,122.26
  5. Step 5: Solve for x
    x = 127,149,931,122.26/326,623.87
  6. Step 6: Final answer
    x = 389,285.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.