Home / 1,208,375.99-1,667,523.60-664,511.21

Finding the Fourth Proportional to 1,208,375.99, 1,667,523.60 and 664,511.21

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Solution

The fourth proportional to 1,208,375.99, 1,667,523.60 and 664,511.21 is: 917,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,375.99 : 1,667,523.60 = 664,511.21 : x
  2. Step 2: Convert to fraction form
    1,208,375.99/1,667,523.60 = 664,511.21/x
  3. Step 3: Cross multiply
    1,208,375.99x = 1,667,523.60 × 664,511.21
  4. Step 4: Simplify right side
    1,208,375.99x = 1,108,088,125,139.56
  5. Step 5: Solve for x
    x = 1,108,088,125,139.56/1,208,375.99
  6. Step 6: Final answer
    x = 917,006.08

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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.