Home / 728,078.20-1,091,922.90-222,638.20

Finding the Fourth Proportional to 728,078.20, 1,091,922.90 and 222,638.20

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Solution

The fourth proportional to 728,078.20, 1,091,922.90 and 222,638.20 is: 333,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,078.20 : 1,091,922.90 = 222,638.20 : x
  2. Step 2: Convert to fraction form
    728,078.20/1,091,922.90 = 222,638.20/x
  3. Step 3: Cross multiply
    728,078.20x = 1,091,922.90 × 222,638.20
  4. Step 4: Simplify right side
    728,078.20x = 243,103,748,994.78
  5. Step 5: Solve for x
    x = 243,103,748,994.78/728,078.20
  6. Step 6: Final answer
    x = 333,897.85

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Double scale
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1.5x scale

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.