Home / 1,279,052.70-1,918,579.05-747,174.30

Finding the Fourth Proportional to 1,279,052.70, 1,918,579.05 and 747,174.30

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Solution

The fourth proportional to 1,279,052.70, 1,918,579.05 and 747,174.30 is: 1,120,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,052.70 : 1,918,579.05 = 747,174.30 : x
  2. Step 2: Convert to fraction form
    1,279,052.70/1,918,579.05 = 747,174.30/x
  3. Step 3: Cross multiply
    1,279,052.70x = 1,918,579.05 × 747,174.30
  4. Step 4: Simplify right side
    1,279,052.70x = 1,433,512,958,678.42
  5. Step 5: Solve for x
    x = 1,433,512,958,678.42/1,279,052.70
  6. Step 6: Final answer
    x = 1,120,761.45

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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.