Home / 681,910.80-1,022,776.60-208,643.60

Finding the Fourth Proportional to 681,910.80, 1,022,776.60 and 208,643.60

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Solution

The fourth proportional to 681,910.80, 1,022,776.60 and 208,643.60 is: 312,937.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,910.80 : 1,022,776.60 = 208,643.60 : x
  2. Step 2: Convert to fraction form
    681,910.80/1,022,776.60 = 208,643.60/x
  3. Step 3: Cross multiply
    681,910.80x = 1,022,776.60 × 208,643.60
  4. Step 4: Simplify right side
    681,910.80x = 213,395,791,819.76
  5. Step 5: Solve for x
    x = 213,395,791,819.76/681,910.80
  6. Step 6: Final answer
    x = 312,937.99

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1.5x scale

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.