Home / 2,820,798.78-3,891,741.03-1,802,790.78

Finding the Fourth Proportional to 2,820,798.78, 3,891,741.03 and 1,802,790.78

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Solution

The fourth proportional to 2,820,798.78, 3,891,741.03 and 1,802,790.78 is: 2,487,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820,798.78 : 3,891,741.03 = 1,802,790.78 : x
  2. Step 2: Convert to fraction form
    2,820,798.78/3,891,741.03 = 1,802,790.78/x
  3. Step 3: Cross multiply
    2,820,798.78x = 3,891,741.03 × 1,802,790.78
  4. Step 4: Simplify right side
    2,820,798.78x = 7,015,994,847,031.70
  5. Step 5: Solve for x
    x = 7,015,994,847,031.70/2,820,798.78
  6. Step 6: Final answer
    x = 2,487,236.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.