Home / 2,145,639.90-3,219,019.46-1,246,216.91

Finding the Fourth Proportional to 2,145,639.90, 3,219,019.46 and 1,246,216.91

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Solution

The fourth proportional to 2,145,639.90, 3,219,019.46 and 1,246,216.91 is: 1,869,650.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,639.90 : 3,219,019.46 = 1,246,216.91 : x
  2. Step 2: Convert to fraction form
    2,145,639.90/3,219,019.46 = 1,246,216.91/x
  3. Step 3: Cross multiply
    2,145,639.90x = 3,219,019.46 × 1,246,216.91
  4. Step 4: Simplify right side
    2,145,639.90x = 4,011,596,478,439.98
  5. Step 5: Solve for x
    x = 4,011,596,478,439.98/2,145,639.90
  6. Step 6: Final answer
    x = 1,869,650.39

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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.