Home / 489,759.96-734,923.56-205,425.18

Finding the Fourth Proportional to 489,759.96, 734,923.56 and 205,425.18

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Solution

The fourth proportional to 489,759.96, 734,923.56 and 205,425.18 is: 308,256.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,759.96 : 734,923.56 = 205,425.18 : x
  2. Step 2: Convert to fraction form
    489,759.96/734,923.56 = 205,425.18/x
  3. Step 3: Cross multiply
    489,759.96x = 734,923.56 × 205,425.18
  4. Step 4: Simplify right side
    489,759.96x = 150,971,804,599.24
  5. Step 5: Solve for x
    x = 150,971,804,599.24/489,759.96
  6. Step 6: Final answer
    x = 308,256.73

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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.