Home / 2,128,786.90-3,193,688.83-708,855.28

Finding the Fourth Proportional to 2,128,786.90, 3,193,688.83 and 708,855.28

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Solution

The fourth proportional to 2,128,786.90, 3,193,688.83 and 708,855.28 is: 1,063,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,786.90 : 3,193,688.83 = 708,855.28 : x
  2. Step 2: Convert to fraction form
    2,128,786.90/3,193,688.83 = 708,855.28/x
  3. Step 3: Cross multiply
    2,128,786.90x = 3,193,688.83 × 708,855.28
  4. Step 4: Simplify right side
    2,128,786.90x = 2,263,863,201,353.42
  5. Step 5: Solve for x
    x = 2,263,863,201,353.42/2,128,786.90
  6. Step 6: Final answer
    x = 1,063,452.24

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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.