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Finding the Fourth Proportional to 489,483.94, 734,261.28 and 204,888.28

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Solution

The fourth proportional to 489,483.94, 734,261.28 and 204,888.28 is: 307,347.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,483.94 : 734,261.28 = 204,888.28 : x
  2. Step 2: Convert to fraction form
    489,483.94/734,261.28 = 204,888.28/x
  3. Step 3: Cross multiply
    489,483.94x = 734,261.28 × 204,888.28
  4. Step 4: Simplify right side
    489,483.94x = 150,441,530,729.80
  5. Step 5: Solve for x
    x = 150,441,530,729.80/489,483.94
  6. Step 6: Final answer
    x = 307,347.23

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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.