Home / 726,878.80-1,089,297.54-619,708.48

Finding the Fourth Proportional to 726,878.80, 1,089,297.54 and 619,708.48

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Solution

The fourth proportional to 726,878.80, 1,089,297.54 and 619,708.48 is: 928,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,878.80 : 1,089,297.54 = 619,708.48 : x
  2. Step 2: Convert to fraction form
    726,878.80/1,089,297.54 = 619,708.48/x
  3. Step 3: Cross multiply
    726,878.80x = 1,089,297.54 × 619,708.48
  4. Step 4: Simplify right side
    726,878.80x = 675,046,922,781.14
  5. Step 5: Solve for x
    x = 675,046,922,781.14/726,878.80
  6. Step 6: Final answer
    x = 928,692.55

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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.