Home / 668,273.20-1,002,395.40-445,063.60

Finding the Fourth Proportional to 668,273.20, 1,002,395.40 and 445,063.60

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Solution

The fourth proportional to 668,273.20, 1,002,395.40 and 445,063.60 is: 667,585.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,273.20 : 1,002,395.40 = 445,063.60 : x
  2. Step 2: Convert to fraction form
    668,273.20/1,002,395.40 = 445,063.60/x
  3. Step 3: Cross multiply
    668,273.20x = 1,002,395.40 × 445,063.60
  4. Step 4: Simplify right side
    668,273.20x = 446,129,705,347.44
  5. Step 5: Solve for x
    x = 446,129,705,347.44/668,273.20
  6. Step 6: Final answer
    x = 667,585.81

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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.