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Finding the Fourth Proportional to 519,790.26, 779,712.89 and 164,831.96

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Solution

The fourth proportional to 519,790.26, 779,712.89 and 164,831.96 is: 247,256.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,790.26 : 779,712.89 = 164,831.96 : x
  2. Step 2: Convert to fraction form
    519,790.26/779,712.89 = 164,831.96/x
  3. Step 3: Cross multiply
    519,790.26x = 779,712.89 × 164,831.96
  4. Step 4: Simplify right side
    519,790.26x = 128,521,605,021.09
  5. Step 5: Solve for x
    x = 128,521,605,021.09/519,790.26
  6. Step 6: Final answer
    x = 247,256.66

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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.