Home / 783,729.42-1,175,583.62-215,109.85

Finding the Fourth Proportional to 783,729.42, 1,175,583.62 and 215,109.85

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Solution

The fourth proportional to 783,729.42, 1,175,583.62 and 215,109.85 is: 322,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,729.42 : 1,175,583.62 = 215,109.85 : x
  2. Step 2: Convert to fraction form
    783,729.42/1,175,583.62 = 215,109.85/x
  3. Step 3: Cross multiply
    783,729.42x = 1,175,583.62 × 215,109.85
  4. Step 4: Simplify right side
    783,729.42x = 252,879,616,160.66
  5. Step 5: Solve for x
    x = 252,879,616,160.66/783,729.42
  6. Step 6: Final answer
    x = 322,661.89

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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.