Home / 2,819,146.88-4,228,682.52-689,249.36

Finding the Fourth Proportional to 2,819,146.88, 4,228,682.52 and 689,249.36

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Solution

The fourth proportional to 2,819,146.88, 4,228,682.52 and 689,249.36 is: 1,033,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819,146.88 : 4,228,682.52 = 689,249.36 : x
  2. Step 2: Convert to fraction form
    2,819,146.88/4,228,682.52 = 689,249.36/x
  3. Step 3: Cross multiply
    2,819,146.88x = 4,228,682.52 × 689,249.36
  4. Step 4: Simplify right side
    2,819,146.88x = 2,914,616,720,553.19
  5. Step 5: Solve for x
    x = 2,914,616,720,553.19/2,819,146.88
  6. Step 6: Final answer
    x = 1,033,864.80

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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.