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Finding the Fourth Proportional to 605,755.65, 835,963.76 and 330,136.48

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Solution

The fourth proportional to 605,755.65, 835,963.76 and 330,136.48 is: 455,599.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,755.65 : 835,963.76 = 330,136.48 : x
  2. Step 2: Convert to fraction form
    605,755.65/835,963.76 = 330,136.48/x
  3. Step 3: Cross multiply
    605,755.65x = 835,963.76 × 330,136.48
  4. Step 4: Simplify right side
    605,755.65x = 275,982,130,572.68
  5. Step 5: Solve for x
    x = 275,982,130,572.68/605,755.65
  6. Step 6: Final answer
    x = 455,599.76

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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.