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Finding the Fourth Proportional to 520,958.08, 781,453.32 and 179,398

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Solution

The fourth proportional to 520,958.08, 781,453.32 and 179,398 is: 269,102.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,958.08 : 781,453.32 = 179,398 : x
  2. Step 2: Convert to fraction form
    520,958.08/781,453.32 = 179,398/x
  3. Step 3: Cross multiply
    520,958.08x = 781,453.32 × 179,398
  4. Step 4: Simplify right side
    520,958.08x = 140,191,162,701.36
  5. Step 5: Solve for x
    x = 140,191,162,701.36/520,958.08
  6. Step 6: Final answer
    x = 269,102.58

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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.