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Finding the Fourth Proportional to 545,049, 817,580.79 and 171,072

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Solution

The fourth proportional to 545,049, 817,580.79 and 171,072 is: 256,610.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,049 : 817,580.79 = 171,072 : x
  2. Step 2: Convert to fraction form
    545,049/817,580.79 = 171,072/x
  3. Step 3: Cross multiply
    545,049x = 817,580.79 × 171,072
  4. Step 4: Simplify right side
    545,049x = 139,865,180,906.88
  5. Step 5: Solve for x
    x = 139,865,180,906.88/545,049
  6. Step 6: Final answer
    x = 256,610.29

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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.