Home / 1,294,059.20-1,939,630.80-620,463.20

Finding the Fourth Proportional to 1,294,059.20, 1,939,630.80 and 620,463.20

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Solution

The fourth proportional to 1,294,059.20, 1,939,630.80 and 620,463.20 is: 929,995.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,059.20 : 1,939,630.80 = 620,463.20 : x
  2. Step 2: Convert to fraction form
    1,294,059.20/1,939,630.80 = 620,463.20/x
  3. Step 3: Cross multiply
    1,294,059.20x = 1,939,630.80 × 620,463.20
  4. Step 4: Simplify right side
    1,294,059.20x = 1,203,469,532,986.56
  5. Step 5: Solve for x
    x = 1,203,469,532,986.56/1,294,059.20
  6. Step 6: Final answer
    x = 929,995.73

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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.