Home / 728,122.80-1,091,892.60-254,564.40

Finding the Fourth Proportional to 728,122.80, 1,091,892.60 and 254,564.40

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Solution

The fourth proportional to 728,122.80, 1,091,892.60 and 254,564.40 is: 381,744.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,122.80 : 1,091,892.60 = 254,564.40 : x
  2. Step 2: Convert to fraction form
    728,122.80/1,091,892.60 = 254,564.40/x
  3. Step 3: Cross multiply
    728,122.80x = 1,091,892.60 × 254,564.40
  4. Step 4: Simplify right side
    728,122.80x = 277,956,984,583.44
  5. Step 5: Solve for x
    x = 277,956,984,583.44/728,122.80
  6. Step 6: Final answer
    x = 381,744.65

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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.