Home / 751,223.78-1,036,788.09-428,861.06

Finding the Fourth Proportional to 751,223.78, 1,036,788.09 and 428,861.06

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Solution

The fourth proportional to 751,223.78, 1,036,788.09 and 428,861.06 is: 591,884.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,223.78 : 1,036,788.09 = 428,861.06 : x
  2. Step 2: Convert to fraction form
    751,223.78/1,036,788.09 = 428,861.06/x
  3. Step 3: Cross multiply
    751,223.78x = 1,036,788.09 × 428,861.06
  4. Step 4: Simplify right side
    751,223.78x = 444,638,039,272.78
  5. Step 5: Solve for x
    x = 444,638,039,272.78/751,223.78
  6. Step 6: Final answer
    x = 591,884.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.