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Finding the Fourth Proportional to 609,796.36, 841,811.52 and 428,663.56

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Solution

The fourth proportional to 609,796.36, 841,811.52 and 428,663.56 is: 591,761.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,796.36 : 841,811.52 = 428,663.56 : x
  2. Step 2: Convert to fraction form
    609,796.36/841,811.52 = 428,663.56/x
  3. Step 3: Cross multiply
    609,796.36x = 841,811.52 × 428,663.56
  4. Step 4: Simplify right side
    609,796.36x = 360,853,923,012.21
  5. Step 5: Solve for x
    x = 360,853,923,012.21/609,796.36
  6. Step 6: Final answer
    x = 591,761.36

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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.