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Finding the Fourth Proportional to 659,659.94, 909,861.42 and 605,387.37

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Solution

The fourth proportional to 659,659.94, 909,861.42 and 605,387.37 is: 835,003.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,659.94 : 909,861.42 = 605,387.37 : x
  2. Step 2: Convert to fraction form
    659,659.94/909,861.42 = 605,387.37/x
  3. Step 3: Cross multiply
    659,659.94x = 909,861.42 × 605,387.37
  4. Step 4: Simplify right side
    659,659.94x = 550,818,612,682.48
  5. Step 5: Solve for x
    x = 550,818,612,682.48/659,659.94
  6. Step 6: Final answer
    x = 835,003.89

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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.