Home / 1,269,100.87-1,902,704.55-763,543.39

Finding the Fourth Proportional to 1,269,100.87, 1,902,704.55 and 763,543.39

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Solution

The fourth proportional to 1,269,100.87, 1,902,704.55 and 763,543.39 is: 1,144,745.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,100.87 : 1,902,704.55 = 763,543.39 : x
  2. Step 2: Convert to fraction form
    1,269,100.87/1,902,704.55 = 763,543.39/x
  3. Step 3: Cross multiply
    1,269,100.87x = 1,902,704.55 × 763,543.39
  4. Step 4: Simplify right side
    1,269,100.87x = 1,452,797,482,275.42
  5. Step 5: Solve for x
    x = 1,452,797,482,275.42/1,269,100.87
  6. Step 6: Final answer
    x = 1,144,745.48

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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.