Home / 874,078.98-1,206,249.62-486,920.45

Finding the Fourth Proportional to 874,078.98, 1,206,249.62 and 486,920.45

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Solution

The fourth proportional to 874,078.98, 1,206,249.62 and 486,920.45 is: 671,961.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,078.98 : 1,206,249.62 = 486,920.45 : x
  2. Step 2: Convert to fraction form
    874,078.98/1,206,249.62 = 486,920.45/x
  3. Step 3: Cross multiply
    874,078.98x = 1,206,249.62 × 486,920.45
  4. Step 4: Simplify right side
    874,078.98x = 587,347,607,782.73
  5. Step 5: Solve for x
    x = 587,347,607,782.73/874,078.98
  6. Step 6: Final answer
    x = 671,961.71

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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.