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Finding the Fourth Proportional to 662,908.25, 994,401.67 and 207,584.64

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Solution

The fourth proportional to 662,908.25, 994,401.67 and 207,584.64 is: 311,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,908.25 : 994,401.67 = 207,584.64 : x
  2. Step 2: Convert to fraction form
    662,908.25/994,401.67 = 207,584.64/x
  3. Step 3: Cross multiply
    662,908.25x = 994,401.67 × 207,584.64
  4. Step 4: Simplify right side
    662,908.25x = 206,422,516,670.84
  5. Step 5: Solve for x
    x = 206,422,516,670.84/662,908.25
  6. Step 6: Final answer
    x = 311,389.27

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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.