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Finding the Fourth Proportional to 656,694.54, 985,097.70 and 207,295.20

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Solution

The fourth proportional to 656,694.54, 985,097.70 and 207,295.20 is: 310,960.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,694.54 : 985,097.70 = 207,295.20 : x
  2. Step 2: Convert to fraction form
    656,694.54/985,097.70 = 207,295.20/x
  3. Step 3: Cross multiply
    656,694.54x = 985,097.70 × 207,295.20
  4. Step 4: Simplify right side
    656,694.54x = 204,206,024,741.04
  5. Step 5: Solve for x
    x = 204,206,024,741.04/656,694.54
  6. Step 6: Final answer
    x = 310,960.44

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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.