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Finding the Fourth Proportional to 519,696, 779,544 and 125,712

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Solution

The fourth proportional to 519,696, 779,544 and 125,712 is: 188,568

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,696 : 779,544 = 125,712 : x
  2. Step 2: Convert to fraction form
    519,696/779,544 = 125,712/x
  3. Step 3: Cross multiply
    519,696x = 779,544 × 125,712
  4. Step 4: Simplify right side
    519,696x = 97,998,035,328
  5. Step 5: Solve for x
    x = 97,998,035,328/519,696
  6. Step 6: Final answer
    x = 188,568

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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.