Home / 2,220,571-3,330,948.66-644,635

Finding the Fourth Proportional to 2,220,571, 3,330,948.66 and 644,635

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Solution

The fourth proportional to 2,220,571, 3,330,948.66 and 644,635 is: 966,979.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220,571 : 3,330,948.66 = 644,635 : x
  2. Step 2: Convert to fraction form
    2,220,571/3,330,948.66 = 644,635/x
  3. Step 3: Cross multiply
    2,220,571x = 3,330,948.66 × 644,635
  4. Step 4: Simplify right side
    2,220,571x = 2,147,246,089,439.10
  5. Step 5: Solve for x
    x = 2,147,246,089,439.10/2,220,571
  6. Step 6: Final answer
    x = 966,979.25

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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.