Home / 2,128,412.68-3,189,846.66-864,763

Finding the Fourth Proportional to 2,128,412.68, 3,189,846.66 and 864,763

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Solution

The fourth proportional to 2,128,412.68, 3,189,846.66 and 864,763 is: 1,296,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,412.68 : 3,189,846.66 = 864,763 : x
  2. Step 2: Convert to fraction form
    2,128,412.68/3,189,846.66 = 864,763/x
  3. Step 3: Cross multiply
    2,128,412.68x = 3,189,846.66 × 864,763
  4. Step 4: Simplify right side
    2,128,412.68x = 2,758,461,367,241.58
  5. Step 5: Solve for x
    x = 2,758,461,367,241.58/2,128,412.68
  6. Step 6: Final answer
    x = 1,296,018.10

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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.