Home / 2,107,200.80-3,160,480.32-687,254.56

Finding the Fourth Proportional to 2,107,200.80, 3,160,480.32 and 687,254.56

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Solution

The fourth proportional to 2,107,200.80, 3,160,480.32 and 687,254.56 is: 1,030,777.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107,200.80 : 3,160,480.32 = 687,254.56 : x
  2. Step 2: Convert to fraction form
    2,107,200.80/3,160,480.32 = 687,254.56/x
  3. Step 3: Cross multiply
    2,107,200.80x = 3,160,480.32 × 687,254.56
  4. Step 4: Simplify right side
    2,107,200.80x = 2,172,054,511,710.26
  5. Step 5: Solve for x
    x = 2,172,054,511,710.26/2,107,200.80
  6. Step 6: Final answer
    x = 1,030,777.19

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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.