Home / 728,087.60-1,091,353.80-278,634.80

Finding the Fourth Proportional to 728,087.60, 1,091,353.80 and 278,634.80

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Solution

The fourth proportional to 728,087.60, 1,091,353.80 and 278,634.80 is: 417,654.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,087.60 : 1,091,353.80 = 278,634.80 : x
  2. Step 2: Convert to fraction form
    728,087.60/1,091,353.80 = 278,634.80/x
  3. Step 3: Cross multiply
    728,087.60x = 1,091,353.80 × 278,634.80
  4. Step 4: Simplify right side
    728,087.60x = 304,089,147,792.24
  5. Step 5: Solve for x
    x = 304,089,147,792.24/728,087.60
  6. Step 6: Final answer
    x = 417,654.62

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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.