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Finding the Fourth Proportional to 508,668.12, 702,035.01 and 304,727.64

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Solution

The fourth proportional to 508,668.12, 702,035.01 and 304,727.64 is: 420,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,668.12 : 702,035.01 = 304,727.64 : x
  2. Step 2: Convert to fraction form
    508,668.12/702,035.01 = 304,727.64/x
  3. Step 3: Cross multiply
    508,668.12x = 702,035.01 × 304,727.64
  4. Step 4: Simplify right side
    508,668.12x = 213,929,471,794.68
  5. Step 5: Solve for x
    x = 213,929,471,794.68/508,668.12
  6. Step 6: Final answer
    x = 420,567.88

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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.