Home / 2,126,273.20-3,189,409.80-1,329,111.70

Finding the Fourth Proportional to 2,126,273.20, 3,189,409.80 and 1,329,111.70

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Solution

The fourth proportional to 2,126,273.20, 3,189,409.80 and 1,329,111.70 is: 1,993,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,273.20 : 3,189,409.80 = 1,329,111.70 : x
  2. Step 2: Convert to fraction form
    2,126,273.20/3,189,409.80 = 1,329,111.70/x
  3. Step 3: Cross multiply
    2,126,273.20x = 3,189,409.80 × 1,329,111.70
  4. Step 4: Simplify right side
    2,126,273.20x = 4,239,081,881,274.66
  5. Step 5: Solve for x
    x = 4,239,081,881,274.66/2,126,273.20
  6. Step 6: Final answer
    x = 1,993,667.55

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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.