Home / 1,389,349.23-2,083,732.25-391,843.95

Finding the Fourth Proportional to 1,389,349.23, 2,083,732.25 and 391,843.95

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Solution

The fourth proportional to 1,389,349.23, 2,083,732.25 and 391,843.95 is: 587,683.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,349.23 : 2,083,732.25 = 391,843.95 : x
  2. Step 2: Convert to fraction form
    1,389,349.23/2,083,732.25 = 391,843.95/x
  3. Step 3: Cross multiply
    1,389,349.23x = 2,083,732.25 × 391,843.95
  4. Step 4: Simplify right side
    1,389,349.23x = 816,497,883,396.38
  5. Step 5: Solve for x
    x = 816,497,883,396.38/1,389,349.23
  6. Step 6: Final answer
    x = 587,683.69

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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.