Home / 2,078,621.70-3,117,932.55-1,277,304.90

Finding the Fourth Proportional to 2,078,621.70, 3,117,932.55 and 1,277,304.90

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Solution

The fourth proportional to 2,078,621.70, 3,117,932.55 and 1,277,304.90 is: 1,915,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,621.70 : 3,117,932.55 = 1,277,304.90 : x
  2. Step 2: Convert to fraction form
    2,078,621.70/3,117,932.55 = 1,277,304.90/x
  3. Step 3: Cross multiply
    2,078,621.70x = 3,117,932.55 × 1,277,304.90
  4. Step 4: Simplify right side
    2,078,621.70x = 3,982,550,523,984.49
  5. Step 5: Solve for x
    x = 3,982,550,523,984.49/2,078,621.70
  6. Step 6: Final answer
    x = 1,915,957.35

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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.