Home / 876,661.30-1,314,663.90-307,822.60

Finding the Fourth Proportional to 876,661.30, 1,314,663.90 and 307,822.60

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Solution

The fourth proportional to 876,661.30, 1,314,663.90 and 307,822.60 is: 461,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,661.30 : 1,314,663.90 = 307,822.60 : x
  2. Step 2: Convert to fraction form
    876,661.30/1,314,663.90 = 307,822.60/x
  3. Step 3: Cross multiply
    876,661.30x = 1,314,663.90 × 307,822.60
  4. Step 4: Simplify right side
    876,661.30x = 404,683,259,824.14
  5. Step 5: Solve for x
    x = 404,683,259,824.14/876,661.30
  6. Step 6: Final answer
    x = 461,618.71

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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.