Home / 1,512,195.80-2,265,669.30-1,275,999.80

Finding the Fourth Proportional to 1,512,195.80, 2,265,669.30 and 1,275,999.80

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Solution

The fourth proportional to 1,512,195.80, 2,265,669.30 and 1,275,999.80 is: 1,911,785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,195.80 : 2,265,669.30 = 1,275,999.80 : x
  2. Step 2: Convert to fraction form
    1,512,195.80/2,265,669.30 = 1,275,999.80/x
  3. Step 3: Cross multiply
    1,512,195.80x = 2,265,669.30 × 1,275,999.80
  4. Step 4: Simplify right side
    1,512,195.80x = 2,890,993,573,666.14
  5. Step 5: Solve for x
    x = 2,890,993,573,666.14/1,512,195.80
  6. Step 6: Final answer
    x = 1,911,785.22

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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.