Home / 1,512,161.40-2,265,617.70-979,408.20

Finding the Fourth Proportional to 1,512,161.40, 2,265,617.70 and 979,408.20

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Solution

The fourth proportional to 1,512,161.40, 2,265,617.70 and 979,408.20 is: 1,467,412.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,161.40 : 2,265,617.70 = 979,408.20 : x
  2. Step 2: Convert to fraction form
    1,512,161.40/2,265,617.70 = 979,408.20/x
  3. Step 3: Cross multiply
    1,512,161.40x = 2,265,617.70 × 979,408.20
  4. Step 4: Simplify right side
    1,512,161.40x = 2,218,964,553,445.14
  5. Step 5: Solve for x
    x = 2,218,964,553,445.14/1,512,161.40
  6. Step 6: Final answer
    x = 1,467,412.51

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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.