Home / 681,949.43-1,022,965.10-208,638.89

Finding the Fourth Proportional to 681,949.43, 1,022,965.10 and 208,638.89

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Solution

The fourth proportional to 681,949.43, 1,022,965.10 and 208,638.89 is: 312,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,949.43 : 1,022,965.10 = 208,638.89 : x
  2. Step 2: Convert to fraction form
    681,949.43/1,022,965.10 = 208,638.89/x
  3. Step 3: Cross multiply
    681,949.43x = 1,022,965.10 × 208,638.89
  4. Step 4: Simplify right side
    681,949.43x = 213,430,296,814.72
  5. Step 5: Solve for x
    x = 213,430,296,814.72/681,949.43
  6. Step 6: Final answer
    x = 312,970.86

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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.