Home / 2,189,076.80-3,283,615.20-769,276.40

Finding the Fourth Proportional to 2,189,076.80, 3,283,615.20 and 769,276.40

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Solution

The fourth proportional to 2,189,076.80, 3,283,615.20 and 769,276.40 is: 1,153,914.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,076.80 : 3,283,615.20 = 769,276.40 : x
  2. Step 2: Convert to fraction form
    2,189,076.80/3,283,615.20 = 769,276.40/x
  3. Step 3: Cross multiply
    2,189,076.80x = 3,283,615.20 × 769,276.40
  4. Step 4: Simplify right side
    2,189,076.80x = 2,526,007,680,041.28
  5. Step 5: Solve for x
    x = 2,526,007,680,041.28/2,189,076.80
  6. Step 6: Final answer
    x = 1,153,914.60

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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.