Home / 681,369.20-1,022,207.40-208,076.40

Finding the Fourth Proportional to 681,369.20, 1,022,207.40 and 208,076.40

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Solution

The fourth proportional to 681,369.20, 1,022,207.40 and 208,076.40 is: 312,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,369.20 : 1,022,207.40 = 208,076.40 : x
  2. Step 2: Convert to fraction form
    681,369.20/1,022,207.40 = 208,076.40/x
  3. Step 3: Cross multiply
    681,369.20x = 1,022,207.40 × 208,076.40
  4. Step 4: Simplify right side
    681,369.20x = 212,697,235,845.36
  5. Step 5: Solve for x
    x = 212,697,235,845.36/681,369.20
  6. Step 6: Final answer
    x = 312,161.51

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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.