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Finding the Fourth Proportional to 489,020.40, 731,975.40 and 349,052.40

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Solution

The fourth proportional to 489,020.40, 731,975.40 and 349,052.40 is: 522,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,020.40 : 731,975.40 = 349,052.40 : x
  2. Step 2: Convert to fraction form
    489,020.40/731,975.40 = 349,052.40/x
  3. Step 3: Cross multiply
    489,020.40x = 731,975.40 × 349,052.40
  4. Step 4: Simplify right side
    489,020.40x = 255,497,770,110.96
  5. Step 5: Solve for x
    x = 255,497,770,110.96/489,020.40
  6. Step 6: Final answer
    x = 522,468.53

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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.