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Finding the Fourth Proportional to 519,956.35, 779,436.27 and 220,024.28

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Solution

The fourth proportional to 519,956.35, 779,436.27 and 220,024.28 is: 329,825.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,956.35 : 779,436.27 = 220,024.28 : x
  2. Step 2: Convert to fraction form
    519,956.35/779,436.27 = 220,024.28/x
  3. Step 3: Cross multiply
    519,956.35x = 779,436.27 × 220,024.28
  4. Step 4: Simplify right side
    519,956.35x = 171,494,906,061.23
  5. Step 5: Solve for x
    x = 171,494,906,061.23/519,956.35
  6. Step 6: Final answer
    x = 329,825.58

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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.