Home / 1,692,761.20-2,539,334.40-613,781.80

Finding the Fourth Proportional to 1,692,761.20, 2,539,334.40 and 613,781.80

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Solution

The fourth proportional to 1,692,761.20, 2,539,334.40 and 613,781.80 is: 920,742.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,761.20 : 2,539,334.40 = 613,781.80 : x
  2. Step 2: Convert to fraction form
    1,692,761.20/2,539,334.40 = 613,781.80/x
  3. Step 3: Cross multiply
    1,692,761.20x = 2,539,334.40 × 613,781.80
  4. Step 4: Simplify right side
    1,692,761.20x = 1,558,597,238,833.92
  5. Step 5: Solve for x
    x = 1,558,597,238,833.92/1,692,761.20
  6. Step 6: Final answer
    x = 920,742.54

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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.