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Finding the Fourth Proportional to 750,326, 1,035,353.44 and 428,016.88

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Solution

The fourth proportional to 750,326, 1,035,353.44 and 428,016.88 is: 590,608.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,326 : 1,035,353.44 = 428,016.88 : x
  2. Step 2: Convert to fraction form
    750,326/1,035,353.44 = 428,016.88/x
  3. Step 3: Cross multiply
    750,326x = 1,035,353.44 × 428,016.88
  4. Step 4: Simplify right side
    750,326x = 443,148,749,086.07
  5. Step 5: Solve for x
    x = 443,148,749,086.07/750,326
  6. Step 6: Final answer
    x = 590,608.28

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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.