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Finding the Fourth Proportional to 519,705.45, 779,560.10 and 159,873.81

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Solution

The fourth proportional to 519,705.45, 779,560.10 and 159,873.81 is: 239,811.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,705.45 : 779,560.10 = 159,873.81 : x
  2. Step 2: Convert to fraction form
    519,705.45/779,560.10 = 159,873.81/x
  3. Step 3: Cross multiply
    519,705.45x = 779,560.10 × 159,873.81
  4. Step 4: Simplify right side
    519,705.45x = 124,631,244,460.51
  5. Step 5: Solve for x
    x = 124,631,244,460.51/519,705.45
  6. Step 6: Final answer
    x = 239,811.31

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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.