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Finding the Fourth Proportional to 340,577.60, 509,991.60 and 270,010.40

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Solution

The fourth proportional to 340,577.60, 509,991.60 and 270,010.40 is: 404,322.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,577.60 : 509,991.60 = 270,010.40 : x
  2. Step 2: Convert to fraction form
    340,577.60/509,991.60 = 270,010.40/x
  3. Step 3: Cross multiply
    340,577.60x = 509,991.60 × 270,010.40
  4. Step 4: Simplify right side
    340,577.60x = 137,703,035,912.64
  5. Step 5: Solve for x
    x = 137,703,035,912.64/340,577.60
  6. Step 6: Final answer
    x = 404,322.06

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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.