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Finding the Fourth Proportional to 519,958.35, 779,439.27 and 220,026.28

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Solution

The fourth proportional to 519,958.35, 779,439.27 and 220,026.28 is: 329,828.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,958.35 : 779,439.27 = 220,026.28 : x
  2. Step 2: Convert to fraction form
    519,958.35/779,439.27 = 220,026.28/x
  3. Step 3: Cross multiply
    519,958.35x = 779,439.27 × 220,026.28
  4. Step 4: Simplify right side
    519,958.35x = 171,497,123,064.02
  5. Step 5: Solve for x
    x = 171,497,123,064.02/519,958.35
  6. Step 6: Final answer
    x = 329,828.58

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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.