Home / 850,312.60-1,275,542.32-219,221.08

Finding the Fourth Proportional to 850,312.60, 1,275,542.32 and 219,221.08

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Solution

The fourth proportional to 850,312.60, 1,275,542.32 and 219,221.08 is: 328,850.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,312.60 : 1,275,542.32 = 219,221.08 : x
  2. Step 2: Convert to fraction form
    850,312.60/1,275,542.32 = 219,221.08/x
  3. Step 3: Cross multiply
    850,312.60x = 1,275,542.32 × 219,221.08
  4. Step 4: Simplify right side
    850,312.60x = 279,625,764,976.11
  5. Step 5: Solve for x
    x = 279,625,764,976.11/850,312.60
  6. Step 6: Final answer
    x = 328,850.55

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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.