Home / 1,392,288.36-2,087,411.10-445,113.96

Finding the Fourth Proportional to 1,392,288.36, 2,087,411.10 and 445,113.96

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Solution

The fourth proportional to 1,392,288.36, 2,087,411.10 and 445,113.96 is: 667,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,288.36 : 2,087,411.10 = 445,113.96 : x
  2. Step 2: Convert to fraction form
    1,392,288.36/2,087,411.10 = 445,113.96/x
  3. Step 3: Cross multiply
    1,392,288.36x = 2,087,411.10 × 445,113.96
  4. Step 4: Simplify right side
    1,392,288.36x = 929,135,820,868.96
  5. Step 5: Solve for x
    x = 929,135,820,868.96/1,392,288.36
  6. Step 6: Final answer
    x = 667,344.39

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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.