Home / 787,660.80-1,181,606.40-255,091.20

Finding the Fourth Proportional to 787,660.80, 1,181,606.40 and 255,091.20

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Solution

The fourth proportional to 787,660.80, 1,181,606.40 and 255,091.20 is: 382,674.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,660.80 : 1,181,606.40 = 255,091.20 : x
  2. Step 2: Convert to fraction form
    787,660.80/1,181,606.40 = 255,091.20/x
  3. Step 3: Cross multiply
    787,660.80x = 1,181,606.40 × 255,091.20
  4. Step 4: Simplify right side
    787,660.80x = 301,417,394,503.68
  5. Step 5: Solve for x
    x = 301,417,394,503.68/787,660.80
  6. Step 6: Final answer
    x = 382,674.11

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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.