Home / 2,129,218.94-3,194,331.78-689,899.94

Finding the Fourth Proportional to 2,129,218.94, 3,194,331.78 and 689,899.94

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Solution

The fourth proportional to 2,129,218.94, 3,194,331.78 and 689,899.94 is: 1,035,013.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,218.94 : 3,194,331.78 = 689,899.94 : x
  2. Step 2: Convert to fraction form
    2,129,218.94/3,194,331.78 = 689,899.94/x
  3. Step 3: Cross multiply
    2,129,218.94x = 3,194,331.78 × 689,899.94
  4. Step 4: Simplify right side
    2,129,218.94x = 2,203,769,303,362.09
  5. Step 5: Solve for x
    x = 2,203,769,303,362.09/2,129,218.94
  6. Step 6: Final answer
    x = 1,035,013.01

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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.