Home / 728,083.20-1,091,930.40-222,643.20

Finding the Fourth Proportional to 728,083.20, 1,091,930.40 and 222,643.20

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Solution

The fourth proportional to 728,083.20, 1,091,930.40 and 222,643.20 is: 333,905.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,083.20 : 1,091,930.40 = 222,643.20 : x
  2. Step 2: Convert to fraction form
    728,083.20/1,091,930.40 = 222,643.20/x
  3. Step 3: Cross multiply
    728,083.20x = 1,091,930.40 × 222,643.20
  4. Step 4: Simplify right side
    728,083.20x = 243,110,878,433.28
  5. Step 5: Solve for x
    x = 243,110,878,433.28/728,083.20
  6. Step 6: Final answer
    x = 333,905.35

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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.