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Finding the Fourth Proportional to 519,885.29, 779,821.76 and 164,902.39

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Solution

The fourth proportional to 519,885.29, 779,821.76 and 164,902.39 is: 247,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,885.29 : 779,821.76 = 164,902.39 : x
  2. Step 2: Convert to fraction form
    519,885.29/779,821.76 = 164,902.39/x
  3. Step 3: Cross multiply
    519,885.29x = 779,821.76 × 164,902.39
  4. Step 4: Simplify right side
    519,885.29x = 128,594,470,460.71
  5. Step 5: Solve for x
    x = 128,594,470,460.71/519,885.29
  6. Step 6: Final answer
    x = 247,351.62

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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.