Home / 2,079,020.40-3,118,530.60-1,281,202.80

Finding the Fourth Proportional to 2,079,020.40, 3,118,530.60 and 1,281,202.80

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Solution

The fourth proportional to 2,079,020.40, 3,118,530.60 and 1,281,202.80 is: 1,921,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,020.40 : 3,118,530.60 = 1,281,202.80 : x
  2. Step 2: Convert to fraction form
    2,079,020.40/3,118,530.60 = 1,281,202.80/x
  3. Step 3: Cross multiply
    2,079,020.40x = 3,118,530.60 × 1,281,202.80
  4. Step 4: Simplify right side
    2,079,020.40x = 3,995,470,136,605.68
  5. Step 5: Solve for x
    x = 3,995,470,136,605.68/2,079,020.40
  6. Step 6: Final answer
    x = 1,921,804.20

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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.