Home / 2,145,423.92-3,219,464.82-1,247,288.36

Finding the Fourth Proportional to 2,145,423.92, 3,219,464.82 and 1,247,288.36

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Solution

The fourth proportional to 2,145,423.92, 3,219,464.82 and 1,247,288.36 is: 1,871,705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,423.92 : 3,219,464.82 = 1,247,288.36 : x
  2. Step 2: Convert to fraction form
    2,145,423.92/3,219,464.82 = 1,247,288.36/x
  3. Step 3: Cross multiply
    2,145,423.92x = 3,219,464.82 × 1,247,288.36
  4. Step 4: Simplify right side
    2,145,423.92x = 4,015,600,995,415.50
  5. Step 5: Solve for x
    x = 4,015,600,995,415.50/2,145,423.92
  6. Step 6: Final answer
    x = 1,871,705.15

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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.