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Finding the Fourth Proportional to 802,689.60, 1,203,606.72 and 270,033.60

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Solution

The fourth proportional to 802,689.60, 1,203,606.72 and 270,033.60 is: 404,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,689.60 : 1,203,606.72 = 270,033.60 : x
  2. Step 2: Convert to fraction form
    802,689.60/1,203,606.72 = 270,033.60/x
  3. Step 3: Cross multiply
    802,689.60x = 1,203,606.72 × 270,033.60
  4. Step 4: Simplify right side
    802,689.60x = 325,014,255,585.79
  5. Step 5: Solve for x
    x = 325,014,255,585.79/802,689.60
  6. Step 6: Final answer
    x = 404,906.52

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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.