Home / 668,297.20-1,002,431.40-445,087.60

Finding the Fourth Proportional to 668,297.20, 1,002,431.40 and 445,087.60

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Solution

The fourth proportional to 668,297.20, 1,002,431.40 and 445,087.60 is: 667,621.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,297.20 : 1,002,431.40 = 445,087.60 : x
  2. Step 2: Convert to fraction form
    668,297.20/1,002,431.40 = 445,087.60/x
  3. Step 3: Cross multiply
    668,297.20x = 1,002,431.40 × 445,087.60
  4. Step 4: Simplify right side
    668,297.20x = 446,169,785,990.64
  5. Step 5: Solve for x
    x = 446,169,785,990.64/668,297.20
  6. Step 6: Final answer
    x = 667,621.81

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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.