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Finding the Fourth Proportional to 659,695.25, 909,910.26 and 605,422.82

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Solution

The fourth proportional to 659,695.25, 909,910.26 and 605,422.82 is: 835,052.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,695.25 : 909,910.26 = 605,422.82 : x
  2. Step 2: Convert to fraction form
    659,695.25/909,910.26 = 605,422.82/x
  3. Step 3: Cross multiply
    659,695.25x = 909,910.26 × 605,422.82
  4. Step 4: Simplify right side
    659,695.25x = 550,880,437,830.91
  5. Step 5: Solve for x
    x = 550,880,437,830.91/659,695.25
  6. Step 6: Final answer
    x = 835,052.91

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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.