Home / 521,784.90-782,936.55-206,252.10

Finding the Fourth Proportional to 521,784.90, 782,936.55 and 206,252.10

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Solution

The fourth proportional to 521,784.90, 782,936.55 and 206,252.10 is: 309,480.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,784.90 : 782,936.55 = 206,252.10 : x
  2. Step 2: Convert to fraction form
    521,784.90/782,936.55 = 206,252.10/x
  3. Step 3: Cross multiply
    521,784.90x = 782,936.55 × 206,252.10
  4. Step 4: Simplify right side
    521,784.90x = 161,482,307,604.26
  5. Step 5: Solve for x
    x = 161,482,307,604.26/521,784.90
  6. Step 6: Final answer
    x = 309,480.61

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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.