Home / 2,129,759.80-2,939,187.55-1,162,979.80

Finding the Fourth Proportional to 2,129,759.80, 2,939,187.55 and 1,162,979.80

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Solution

The fourth proportional to 2,129,759.80, 2,939,187.55 and 1,162,979.80 is: 1,604,977.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,759.80 : 2,939,187.55 = 1,162,979.80 : x
  2. Step 2: Convert to fraction form
    2,129,759.80/2,939,187.55 = 1,162,979.80/x
  3. Step 3: Cross multiply
    2,129,759.80x = 2,939,187.55 × 1,162,979.80
  4. Step 4: Simplify right side
    2,129,759.80x = 3,418,215,749,061.49
  5. Step 5: Solve for x
    x = 3,418,215,749,061.49/2,129,759.80
  6. Step 6: Final answer
    x = 1,604,977.12

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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.