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Finding the Fourth Proportional to 346,674, 520,011 and 84,018

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Solution

The fourth proportional to 346,674, 520,011 and 84,018 is: 126,027

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,674 : 520,011 = 84,018 : x
  2. Step 2: Convert to fraction form
    346,674/520,011 = 84,018/x
  3. Step 3: Cross multiply
    346,674x = 520,011 × 84,018
  4. Step 4: Simplify right side
    346,674x = 43,690,284,198
  5. Step 5: Solve for x
    x = 43,690,284,198/346,674
  6. Step 6: Final answer
    x = 126,027

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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.