Home / 2,643,022.80-3,964,534.20-1,380,686.40

Finding the Fourth Proportional to 2,643,022.80, 3,964,534.20 and 1,380,686.40

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Solution

The fourth proportional to 2,643,022.80, 3,964,534.20 and 1,380,686.40 is: 2,071,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643,022.80 : 3,964,534.20 = 1,380,686.40 : x
  2. Step 2: Convert to fraction form
    2,643,022.80/3,964,534.20 = 1,380,686.40/x
  3. Step 3: Cross multiply
    2,643,022.80x = 3,964,534.20 × 1,380,686.40
  4. Step 4: Simplify right side
    2,643,022.80x = 5,473,778,452,274.88
  5. Step 5: Solve for x
    x = 5,473,778,452,274.88/2,643,022.80
  6. Step 6: Final answer
    x = 2,071,029.60

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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.