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Finding the Fourth Proportional to 468,069.60, 702,104.40 and 279,112.80

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Solution

The fourth proportional to 468,069.60, 702,104.40 and 279,112.80 is: 418,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,069.60 : 702,104.40 = 279,112.80 : x
  2. Step 2: Convert to fraction form
    468,069.60/702,104.40 = 279,112.80/x
  3. Step 3: Cross multiply
    468,069.60x = 702,104.40 × 279,112.80
  4. Step 4: Simplify right side
    468,069.60x = 195,966,324,976.32
  5. Step 5: Solve for x
    x = 195,966,324,976.32/468,069.60
  6. Step 6: Final answer
    x = 418,669.20

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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.