Home / 876,632.12-1,315,079.62-307,912.94

Finding the Fourth Proportional to 876,632.12, 1,315,079.62 and 307,912.94

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Solution

The fourth proportional to 876,632.12, 1,315,079.62 and 307,912.94 is: 461,915.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,632.12 : 1,315,079.62 = 307,912.94 : x
  2. Step 2: Convert to fraction form
    876,632.12/1,315,079.62 = 307,912.94/x
  3. Step 3: Cross multiply
    876,632.12x = 1,315,079.62 × 307,912.94
  4. Step 4: Simplify right side
    876,632.12x = 404,930,032,128.28
  5. Step 5: Solve for x
    x = 404,930,032,128.28/876,632.12
  6. Step 6: Final answer
    x = 461,915.58

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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.