Home / 664,413.69-916,878.11-362,609.85

Finding the Fourth Proportional to 664,413.69, 916,878.11 and 362,609.85

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Solution

The fourth proportional to 664,413.69, 916,878.11 and 362,609.85 is: 500,394.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,413.69 : 916,878.11 = 362,609.85 : x
  2. Step 2: Convert to fraction form
    664,413.69/916,878.11 = 362,609.85/x
  3. Step 3: Cross multiply
    664,413.69x = 916,878.11 × 362,609.85
  4. Step 4: Simplify right side
    664,413.69x = 332,469,032,122.33
  5. Step 5: Solve for x
    x = 332,469,032,122.33/664,413.69
  6. Step 6: Final answer
    x = 500,394.61

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1.5x scale

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.