Home / 681,947.43-1,022,962.09-208,636.89

Finding the Fourth Proportional to 681,947.43, 1,022,962.09 and 208,636.89

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Solution

The fourth proportional to 681,947.43, 1,022,962.09 and 208,636.89 is: 312,967.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,947.43 : 1,022,962.09 = 208,636.89 : x
  2. Step 2: Convert to fraction form
    681,947.43/1,022,962.09 = 208,636.89/x
  3. Step 3: Cross multiply
    681,947.43x = 1,022,962.09 × 208,636.89
  4. Step 4: Simplify right side
    681,947.43x = 213,427,629,045.50
  5. Step 5: Solve for x
    x = 213,427,629,045.50/681,947.43
  6. Step 6: Final answer
    x = 312,967.86

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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.