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Finding the Fourth Proportional to 621,002.65, 857,074.41 and 349,092.94

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Solution

The fourth proportional to 621,002.65, 857,074.41 and 349,092.94 is: 481,799.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,002.65 : 857,074.41 = 349,092.94 : x
  2. Step 2: Convert to fraction form
    621,002.65/857,074.41 = 349,092.94/x
  3. Step 3: Cross multiply
    621,002.65x = 857,074.41 × 349,092.94
  4. Step 4: Simplify right side
    621,002.65x = 299,198,625,585.67
  5. Step 5: Solve for x
    x = 299,198,625,585.67/621,002.65
  6. Step 6: Final answer
    x = 481,799.27

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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.