Home / 1,208,380.52-1,667,529.78-664,515.74

Finding the Fourth Proportional to 1,208,380.52, 1,667,529.78 and 664,515.74

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Solution

The fourth proportional to 1,208,380.52, 1,667,529.78 and 664,515.74 is: 917,012.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,380.52 : 1,667,529.78 = 664,515.74 : x
  2. Step 2: Convert to fraction form
    1,208,380.52/1,667,529.78 = 664,515.74/x
  3. Step 3: Cross multiply
    1,208,380.52x = 1,667,529.78 × 664,515.74
  4. Step 4: Simplify right side
    1,208,380.52x = 1,108,099,785,728.74
  5. Step 5: Solve for x
    x = 1,108,099,785,728.74/1,208,380.52
  6. Step 6: Final answer
    x = 917,012.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.