Home / 907,489.20-1,361,233.80-765,771.60

Finding the Fourth Proportional to 907,489.20, 1,361,233.80 and 765,771.60

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Solution

The fourth proportional to 907,489.20, 1,361,233.80 and 765,771.60 is: 1,148,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,489.20 : 1,361,233.80 = 765,771.60 : x
  2. Step 2: Convert to fraction form
    907,489.20/1,361,233.80 = 765,771.60/x
  3. Step 3: Cross multiply
    907,489.20x = 1,361,233.80 × 765,771.60
  4. Step 4: Simplify right side
    907,489.20x = 1,042,394,185,000.08
  5. Step 5: Solve for x
    x = 1,042,394,185,000.08/907,489.20
  6. Step 6: Final answer
    x = 1,148,657.40

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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.