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Finding the Fourth Proportional to 519,632.73, 779,471.01 and 164,638.89

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Solution

The fourth proportional to 519,632.73, 779,471.01 and 164,638.89 is: 246,965.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,632.73 : 779,471.01 = 164,638.89 : x
  2. Step 2: Convert to fraction form
    519,632.73/779,471.01 = 164,638.89/x
  3. Step 3: Cross multiply
    519,632.73x = 779,471.01 × 164,638.89
  4. Step 4: Simplify right side
    519,632.73x = 128,331,241,873.58
  5. Step 5: Solve for x
    x = 128,331,241,873.58/519,632.73
  6. Step 6: Final answer
    x = 246,965.28

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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.