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Finding the Fourth Proportional to 519,862.76, 779,788.01 and 164,879.85

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Solution

The fourth proportional to 519,862.76, 779,788.01 and 164,879.85 is: 247,317.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,862.76 : 779,788.01 = 164,879.85 : x
  2. Step 2: Convert to fraction form
    519,862.76/779,788.01 = 164,879.85/x
  3. Step 3: Cross multiply
    519,862.76x = 779,788.01 × 164,879.85
  4. Step 4: Simplify right side
    519,862.76x = 128,571,333,457.00
  5. Step 5: Solve for x
    x = 128,571,333,457.00/519,862.76
  6. Step 6: Final answer
    x = 247,317.84

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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.