Home / 681,867.90-1,022,637.84-208,557.36

Finding the Fourth Proportional to 681,867.90, 1,022,637.84 and 208,557.36

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Solution

The fourth proportional to 681,867.90, 1,022,637.84 and 208,557.36 is: 312,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,867.90 : 1,022,637.84 = 208,557.36 : x
  2. Step 2: Convert to fraction form
    681,867.90/1,022,637.84 = 208,557.36/x
  3. Step 3: Cross multiply
    681,867.90x = 1,022,637.84 × 208,557.36
  4. Step 4: Simplify right side
    681,867.90x = 213,278,648,146.50
  5. Step 5: Solve for x
    x = 213,278,648,146.50/681,867.90
  6. Step 6: Final answer
    x = 312,785.88

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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.