Home / 681,856.04-1,022,783.96-647,761.64

Finding the Fourth Proportional to 681,856.04, 1,022,783.96 and 647,761.64

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Solution

The fourth proportional to 681,856.04, 1,022,783.96 and 647,761.64 is: 971,642.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,856.04 : 1,022,783.96 = 647,761.64 : x
  2. Step 2: Convert to fraction form
    681,856.04/1,022,783.96 = 647,761.64/x
  3. Step 3: Cross multiply
    681,856.04x = 1,022,783.96 × 647,761.64
  4. Step 4: Simplify right side
    681,856.04x = 662,520,211,800.78
  5. Step 5: Solve for x
    x = 662,520,211,800.78/681,856.04
  6. Step 6: Final answer
    x = 971,642.36

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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.