Home / 929,450.40-1,390,489.20-806,160.80

Finding the Fourth Proportional to 929,450.40, 1,390,489.20 and 806,160.80

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Solution

The fourth proportional to 929,450.40, 1,390,489.20 and 806,160.80 is: 1,206,043.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,450.40 : 1,390,489.20 = 806,160.80 : x
  2. Step 2: Convert to fraction form
    929,450.40/1,390,489.20 = 806,160.80/x
  3. Step 3: Cross multiply
    929,450.40x = 1,390,489.20 × 806,160.80
  4. Step 4: Simplify right side
    929,450.40x = 1,120,957,885,863.36
  5. Step 5: Solve for x
    x = 1,120,957,885,863.36/929,450.40
  6. Step 6: Final answer
    x = 1,206,043.79

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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.