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Finding the Fourth Proportional to 539,579.19, 809,178.78 and 179,652.32

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Solution

The fourth proportional to 539,579.19, 809,178.78 and 179,652.32 is: 269,415.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,579.19 : 809,178.78 = 179,652.32 : x
  2. Step 2: Convert to fraction form
    539,579.19/809,178.78 = 179,652.32/x
  3. Step 3: Cross multiply
    539,579.19x = 809,178.78 × 179,652.32
  4. Step 4: Simplify right side
    539,579.19x = 145,370,845,121.77
  5. Step 5: Solve for x
    x = 145,370,845,121.77/539,579.19
  6. Step 6: Final answer
    x = 269,415.22

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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.