Home / 819,589.36-1,229,273.32-220,586.46

Finding the Fourth Proportional to 819,589.36, 1,229,273.32 and 220,586.46

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Solution

The fourth proportional to 819,589.36, 1,229,273.32 and 220,586.46 is: 330,849.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,589.36 : 1,229,273.32 = 220,586.46 : x
  2. Step 2: Convert to fraction form
    819,589.36/1,229,273.32 = 220,586.46/x
  3. Step 3: Cross multiply
    819,589.36x = 1,229,273.32 × 220,586.46
  4. Step 4: Simplify right side
    819,589.36x = 271,161,047,333.77
  5. Step 5: Solve for x
    x = 271,161,047,333.77/819,589.36
  6. Step 6: Final answer
    x = 330,849.89

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1.5x scale

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.