Home / 664,917.32-997,516.12-215,603.18

Finding the Fourth Proportional to 664,917.32, 997,516.12 and 215,603.18

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Solution

The fourth proportional to 664,917.32, 997,516.12 and 215,603.18 is: 323,450.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,917.32 : 997,516.12 = 215,603.18 : x
  2. Step 2: Convert to fraction form
    664,917.32/997,516.12 = 215,603.18/x
  3. Step 3: Cross multiply
    664,917.32x = 997,516.12 × 215,603.18
  4. Step 4: Simplify right side
    664,917.32x = 215,067,647,573.26
  5. Step 5: Solve for x
    x = 215,067,647,573.26/664,917.32
  6. Step 6: Final answer
    x = 323,450.21

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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.