Home / 2,099,399.64-3,149,599.20-679,455.71

Finding the Fourth Proportional to 2,099,399.64, 3,149,599.20 and 679,455.71

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Solution

The fourth proportional to 2,099,399.64, 3,149,599.20 and 679,455.71 is: 1,019,345.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,399.64 : 3,149,599.20 = 679,455.71 : x
  2. Step 2: Convert to fraction form
    2,099,399.64/3,149,599.20 = 679,455.71/x
  3. Step 3: Cross multiply
    2,099,399.64x = 3,149,599.20 × 679,455.71
  4. Step 4: Simplify right side
    2,099,399.64x = 2,140,013,166,826.79
  5. Step 5: Solve for x
    x = 2,140,013,166,826.79/2,099,399.64
  6. Step 6: Final answer
    x = 1,019,345.31

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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.