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Finding the Fourth Proportional to 519,762.70, 779,571.15 and 164,812.60

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Solution

The fourth proportional to 519,762.70, 779,571.15 and 164,812.60 is: 247,195.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,762.70 : 779,571.15 = 164,812.60 : x
  2. Step 2: Convert to fraction form
    519,762.70/779,571.15 = 164,812.60/x
  3. Step 3: Cross multiply
    519,762.70x = 779,571.15 × 164,812.60
  4. Step 4: Simplify right side
    519,762.70x = 128,483,148,116.49
  5. Step 5: Solve for x
    x = 128,483,148,116.49/519,762.70
  6. Step 6: Final answer
    x = 247,195.78

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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.