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Finding the Fourth Proportional to 768,334.66, 1,060,274.00 and 424,163.21

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Solution

The fourth proportional to 768,334.66, 1,060,274.00 and 424,163.21 is: 585,329.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,334.66 : 1,060,274.00 = 424,163.21 : x
  2. Step 2: Convert to fraction form
    768,334.66/1,060,274.00 = 424,163.21/x
  3. Step 3: Cross multiply
    768,334.66x = 1,060,274.00 × 424,163.21
  4. Step 4: Simplify right side
    768,334.66x = 449,729,219,078.58
  5. Step 5: Solve for x
    x = 449,729,219,078.58/768,334.66
  6. Step 6: Final answer
    x = 585,329.86

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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.