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Finding the Fourth Proportional to 447,388.71, 617,195.66 and 302,147.27

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Solution

The fourth proportional to 447,388.71, 617,195.66 and 302,147.27 is: 416,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,388.71 : 617,195.66 = 302,147.27 : x
  2. Step 2: Convert to fraction form
    447,388.71/617,195.66 = 302,147.27/x
  3. Step 3: Cross multiply
    447,388.71x = 617,195.66 × 302,147.27
  4. Step 4: Simplify right side
    447,388.71x = 186,483,983,724.85
  5. Step 5: Solve for x
    x = 186,483,983,724.85/447,388.71
  6. Step 6: Final answer
    x = 416,827.65

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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.