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Finding the Fourth Proportional to 750,851.22, 1,036,249 and 428,609.76

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Solution

The fourth proportional to 750,851.22, 1,036,249 and 428,609.76 is: 591,523.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,851.22 : 1,036,249 = 428,609.76 : x
  2. Step 2: Convert to fraction form
    750,851.22/1,036,249 = 428,609.76/x
  3. Step 3: Cross multiply
    750,851.22x = 1,036,249 × 428,609.76
  4. Step 4: Simplify right side
    750,851.22x = 444,146,435,190.24
  5. Step 5: Solve for x
    x = 444,146,435,190.24/750,851.22
  6. Step 6: Final answer
    x = 591,523.89

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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.