Home / 489,815.40-734,550.30-174,282.60

Finding the Fourth Proportional to 489,815.40, 734,550.30 and 174,282.60

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Solution

The fourth proportional to 489,815.40, 734,550.30 and 174,282.60 is: 261,362.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,815.40 : 734,550.30 = 174,282.60 : x
  2. Step 2: Convert to fraction form
    489,815.40/734,550.30 = 174,282.60/x
  3. Step 3: Cross multiply
    489,815.40x = 734,550.30 × 174,282.60
  4. Step 4: Simplify right side
    489,815.40x = 128,019,336,114.78
  5. Step 5: Solve for x
    x = 128,019,336,114.78/489,815.40
  6. Step 6: Final answer
    x = 261,362.42

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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.