Home / 1,419,780.89-1,959,282.79-775,199.09

Finding the Fourth Proportional to 1,419,780.89, 1,959,282.79 and 775,199.09

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Solution

The fourth proportional to 1,419,780.89, 1,959,282.79 and 775,199.09 is: 1,069,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,780.89 : 1,959,282.79 = 775,199.09 : x
  2. Step 2: Convert to fraction form
    1,419,780.89/1,959,282.79 = 775,199.09/x
  3. Step 3: Cross multiply
    1,419,780.89x = 1,959,282.79 × 775,199.09
  4. Step 4: Simplify right side
    1,419,780.89x = 1,518,834,238,820.87
  5. Step 5: Solve for x
    x = 1,518,834,238,820.87/1,419,780.89
  6. Step 6: Final answer
    x = 1,069,766.64

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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.