Home / 521,682.90-782,783.55-206,150.10

Finding the Fourth Proportional to 521,682.90, 782,783.55 and 206,150.10

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Solution

The fourth proportional to 521,682.90, 782,783.55 and 206,150.10 is: 309,327.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,682.90 : 782,783.55 = 206,150.10 : x
  2. Step 2: Convert to fraction form
    521,682.90/782,783.55 = 206,150.10/x
  3. Step 3: Cross multiply
    521,682.90x = 782,783.55 × 206,150.10
  4. Step 4: Simplify right side
    521,682.90x = 161,370,907,110.86
  5. Step 5: Solve for x
    x = 161,370,907,110.86/521,682.90
  6. Step 6: Final answer
    x = 309,327.58

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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.