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Finding the Fourth Proportional to 737,729.10, 1,106,593.65 and 485,786.70

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Solution

The fourth proportional to 737,729.10, 1,106,593.65 and 485,786.70 is: 728,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,729.10 : 1,106,593.65 = 485,786.70 : x
  2. Step 2: Convert to fraction form
    737,729.10/1,106,593.65 = 485,786.70/x
  3. Step 3: Cross multiply
    737,729.10x = 1,106,593.65 × 485,786.70
  4. Step 4: Simplify right side
    737,729.10x = 537,568,477,474.46
  5. Step 5: Solve for x
    x = 537,568,477,474.46/737,729.10
  6. Step 6: Final answer
    x = 728,680.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.