Home / 680,839.38-1,021,369.95-201,115.86

Finding the Fourth Proportional to 680,839.38, 1,021,369.95 and 201,115.86

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Solution

The fourth proportional to 680,839.38, 1,021,369.95 and 201,115.86 is: 301,706.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,839.38 : 1,021,369.95 = 201,115.86 : x
  2. Step 2: Convert to fraction form
    680,839.38/1,021,369.95 = 201,115.86/x
  3. Step 3: Cross multiply
    680,839.38x = 1,021,369.95 × 201,115.86
  4. Step 4: Simplify right side
    680,839.38x = 205,413,695,872.41
  5. Step 5: Solve for x
    x = 205,413,695,872.41/680,839.38
  6. Step 6: Final answer
    x = 301,706.54

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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.