Home / 1,427,201.20-2,140,801.80-1,405,082.80

Finding the Fourth Proportional to 1,427,201.20, 2,140,801.80 and 1,405,082.80

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Solution

The fourth proportional to 1,427,201.20, 2,140,801.80 and 1,405,082.80 is: 2,107,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,201.20 : 2,140,801.80 = 1,405,082.80 : x
  2. Step 2: Convert to fraction form
    1,427,201.20/2,140,801.80 = 1,405,082.80/x
  3. Step 3: Cross multiply
    1,427,201.20x = 2,140,801.80 × 1,405,082.80
  4. Step 4: Simplify right side
    1,427,201.20x = 3,008,003,787,389.04
  5. Step 5: Solve for x
    x = 3,008,003,787,389.04/1,427,201.20
  6. Step 6: Final answer
    x = 2,107,624.20

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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.