Home / 489,801.73-734,986.35-205,467.13

Finding the Fourth Proportional to 489,801.73, 734,986.35 and 205,467.13

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Solution

The fourth proportional to 489,801.73, 734,986.35 and 205,467.13 is: 308,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,801.73 : 734,986.35 = 205,467.13 : x
  2. Step 2: Convert to fraction form
    489,801.73/734,986.35 = 205,467.13/x
  3. Step 3: Cross multiply
    489,801.73x = 734,986.35 × 205,467.13
  4. Step 4: Simplify right side
    489,801.73x = 151,015,531,221.41
  5. Step 5: Solve for x
    x = 151,015,531,221.41/489,801.73
  6. Step 6: Final answer
    x = 308,319.72

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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.