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Finding the Fourth Proportional to 618,164.42, 853,009.53 and 349,892.42

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Solution

The fourth proportional to 618,164.42, 853,009.53 and 349,892.42 is: 482,819.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,164.42 : 853,009.53 = 349,892.42 : x
  2. Step 2: Convert to fraction form
    618,164.42/853,009.53 = 349,892.42/x
  3. Step 3: Cross multiply
    618,164.42x = 853,009.53 × 349,892.42
  4. Step 4: Simplify right side
    618,164.42x = 298,461,568,734.76
  5. Step 5: Solve for x
    x = 298,461,568,734.76/618,164.42
  6. Step 6: Final answer
    x = 482,819.07

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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.