Home / 551,629.20-827,443.80-214,685.40

Finding the Fourth Proportional to 551,629.20, 827,443.80 and 214,685.40

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Solution

The fourth proportional to 551,629.20, 827,443.80 and 214,685.40 is: 322,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,629.20 : 827,443.80 = 214,685.40 : x
  2. Step 2: Convert to fraction form
    551,629.20/827,443.80 = 214,685.40/x
  3. Step 3: Cross multiply
    551,629.20x = 827,443.80 × 214,685.40
  4. Step 4: Simplify right side
    551,629.20x = 177,640,103,180.52
  5. Step 5: Solve for x
    x = 177,640,103,180.52/551,629.20
  6. Step 6: Final answer
    x = 322,028.10

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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.