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Finding the Fourth Proportional to 489,933.36, 676,182.33 and 299,057.67

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Solution

The fourth proportional to 489,933.36, 676,182.33 and 299,057.67 is: 412,744.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,933.36 : 676,182.33 = 299,057.67 : x
  2. Step 2: Convert to fraction form
    489,933.36/676,182.33 = 299,057.67/x
  3. Step 3: Cross multiply
    489,933.36x = 676,182.33 × 299,057.67
  4. Step 4: Simplify right side
    489,933.36x = 202,217,512,104.97
  5. Step 5: Solve for x
    x = 202,217,512,104.97/489,933.36
  6. Step 6: Final answer
    x = 412,744.93

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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.