Home / 1,419,699.16-1,959,108.42-775,109.80

Finding the Fourth Proportional to 1,419,699.16, 1,959,108.42 and 775,109.80

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Solution

The fourth proportional to 1,419,699.16, 1,959,108.42 and 775,109.80 is: 1,069,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,699.16 : 1,959,108.42 = 775,109.80 : x
  2. Step 2: Convert to fraction form
    1,419,699.16/1,959,108.42 = 775,109.80/x
  3. Step 3: Cross multiply
    1,419,699.16x = 1,959,108.42 × 775,109.80
  4. Step 4: Simplify right side
    1,419,699.16x = 1,518,524,135,604.52
  5. Step 5: Solve for x
    x = 1,518,524,135,604.52/1,419,699.16
  6. Step 6: Final answer
    x = 1,069,609.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.