Home / 711,391.80-1,067,865.30-445,452.60

Finding the Fourth Proportional to 711,391.80, 1,067,865.30 and 445,452.60

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Solution

The fourth proportional to 711,391.80, 1,067,865.30 and 445,452.60 is: 668,665.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,391.80 : 1,067,865.30 = 445,452.60 : x
  2. Step 2: Convert to fraction form
    711,391.80/1,067,865.30 = 445,452.60/x
  3. Step 3: Cross multiply
    711,391.80x = 1,067,865.30 × 445,452.60
  4. Step 4: Simplify right side
    711,391.80x = 475,683,374,334.78
  5. Step 5: Solve for x
    x = 475,683,374,334.78/711,391.80
  6. Step 6: Final answer
    x = 668,665.81

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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.