Home / 701,187.72-1,051,421.32-321,781.84

Finding the Fourth Proportional to 701,187.72, 1,051,421.32 and 321,781.84

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Solution

The fourth proportional to 701,187.72, 1,051,421.32 and 321,781.84 is: 482,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,187.72 : 1,051,421.32 = 321,781.84 : x
  2. Step 2: Convert to fraction form
    701,187.72/1,051,421.32 = 321,781.84/x
  3. Step 3: Cross multiply
    701,187.72x = 1,051,421.32 × 321,781.84
  4. Step 4: Simplify right side
    701,187.72x = 338,328,286,964.83
  5. Step 5: Solve for x
    x = 338,328,286,964.83/701,187.72
  6. Step 6: Final answer
    x = 482,507.43

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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.