Home / 1,296,027.40-1,942,485.90-664,616.20

Finding the Fourth Proportional to 1,296,027.40, 1,942,485.90 and 664,616.20

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Solution

The fourth proportional to 1,296,027.40, 1,942,485.90 and 664,616.20 is: 996,126.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,027.40 : 1,942,485.90 = 664,616.20 : x
  2. Step 2: Convert to fraction form
    1,296,027.40/1,942,485.90 = 664,616.20/x
  3. Step 3: Cross multiply
    1,296,027.40x = 1,942,485.90 × 664,616.20
  4. Step 4: Simplify right side
    1,296,027.40x = 1,291,007,597,411.58
  5. Step 5: Solve for x
    x = 1,291,007,597,411.58/1,296,027.40
  6. Step 6: Final answer
    x = 996,126.78

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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.