Home / 2,420,020.80-3,629,156.40-1,221,544.80

Finding the Fourth Proportional to 2,420,020.80, 3,629,156.40 and 1,221,544.80

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Solution

The fourth proportional to 2,420,020.80, 3,629,156.40 and 1,221,544.80 is: 1,831,875.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420,020.80 : 3,629,156.40 = 1,221,544.80 : x
  2. Step 2: Convert to fraction form
    2,420,020.80/3,629,156.40 = 1,221,544.80/x
  3. Step 3: Cross multiply
    2,420,020.80x = 3,629,156.40 × 1,221,544.80
  4. Step 4: Simplify right side
    2,420,020.80x = 4,433,177,128,806.72
  5. Step 5: Solve for x
    x = 4,433,177,128,806.72/2,420,020.80
  6. Step 6: Final answer
    x = 1,831,875.63

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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.