Home / 513,608.28-770,632.98-198,286.62

Finding the Fourth Proportional to 513,608.28, 770,632.98 and 198,286.62

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Solution

The fourth proportional to 513,608.28, 770,632.98 and 198,286.62 is: 297,515.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,608.28 : 770,632.98 = 198,286.62 : x
  2. Step 2: Convert to fraction form
    513,608.28/770,632.98 = 198,286.62/x
  3. Step 3: Cross multiply
    513,608.28x = 770,632.98 × 198,286.62
  4. Step 4: Simplify right side
    513,608.28x = 152,806,208,864.73
  5. Step 5: Solve for x
    x = 152,806,208,864.73/513,608.28
  6. Step 6: Final answer
    x = 297,515.08

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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.