Home / 1,208,455.53-1,667,635.33-664,591.31

Finding the Fourth Proportional to 1,208,455.53, 1,667,635.33 and 664,591.31

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Solution

The fourth proportional to 1,208,455.53, 1,667,635.33 and 664,591.31 is: 917,117.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,455.53 : 1,667,635.33 = 664,591.31 : x
  2. Step 2: Convert to fraction form
    1,208,455.53/1,667,635.33 = 664,591.31/x
  3. Step 3: Cross multiply
    1,208,455.53x = 1,667,635.33 × 664,591.31
  4. Step 4: Simplify right side
    1,208,455.53x = 1,108,295,948,566.98
  5. Step 5: Solve for x
    x = 1,108,295,948,566.98/1,208,455.53
  6. Step 6: Final answer
    x = 917,117.69

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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.