Home / 668,230.20-1,002,330.90-445,020.60

Finding the Fourth Proportional to 668,230.20, 1,002,330.90 and 445,020.60

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Solution

The fourth proportional to 668,230.20, 1,002,330.90 and 445,020.60 is: 667,521.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,230.20 : 1,002,330.90 = 445,020.60 : x
  2. Step 2: Convert to fraction form
    668,230.20/1,002,330.90 = 445,020.60/x
  3. Step 3: Cross multiply
    668,230.20x = 1,002,330.90 × 445,020.60
  4. Step 4: Simplify right side
    668,230.20x = 446,057,898,516.54
  5. Step 5: Solve for x
    x = 446,057,898,516.54/668,230.20
  6. Step 6: Final answer
    x = 667,521.31

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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.