Home / 681,605.63-1,022,410.88-208,289.02

Finding the Fourth Proportional to 681,605.63, 1,022,410.88 and 208,289.02

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Solution

The fourth proportional to 681,605.63, 1,022,410.88 and 208,289.02 is: 312,434.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,605.63 : 1,022,410.88 = 208,289.02 : x
  2. Step 2: Convert to fraction form
    681,605.63/1,022,410.88 = 208,289.02/x
  3. Step 3: Cross multiply
    681,605.63x = 1,022,410.88 × 208,289.02
  4. Step 4: Simplify right side
    681,605.63x = 212,956,954,079.04
  5. Step 5: Solve for x
    x = 212,956,954,079.04/681,605.63
  6. Step 6: Final answer
    x = 312,434.27

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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.