Home / 681,370.20-1,022,208.90-208,077.40

Finding the Fourth Proportional to 681,370.20, 1,022,208.90 and 208,077.40

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Solution

The fourth proportional to 681,370.20, 1,022,208.90 and 208,077.40 is: 312,163.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,370.20 : 1,022,208.90 = 208,077.40 : x
  2. Step 2: Convert to fraction form
    681,370.20/1,022,208.90 = 208,077.40/x
  3. Step 3: Cross multiply
    681,370.20x = 1,022,208.90 × 208,077.40
  4. Step 4: Simplify right side
    681,370.20x = 212,698,570,168.86
  5. Step 5: Solve for x
    x = 212,698,570,168.86/681,370.20
  6. Step 6: Final answer
    x = 312,163.01

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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.