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Finding the Fourth Proportional to 448,010, 672,027.96 and 115,586

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Solution

The fourth proportional to 448,010, 672,027.96 and 115,586 is: 173,382.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,010 : 672,027.96 = 115,586 : x
  2. Step 2: Convert to fraction form
    448,010/672,027.96 = 115,586/x
  3. Step 3: Cross multiply
    448,010x = 672,027.96 × 115,586
  4. Step 4: Simplify right side
    448,010x = 77,677,023,784.56
  5. Step 5: Solve for x
    x = 77,677,023,784.56/448,010
  6. Step 6: Final answer
    x = 173,382.34

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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.