Home / 1,285,469.25-1,929,171.84-879,690.03

Finding the Fourth Proportional to 1,285,469.25, 1,929,171.84 and 879,690.03

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Solution

The fourth proportional to 1,285,469.25, 1,929,171.84 and 879,690.03 is: 1,320,197.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,469.25 : 1,929,171.84 = 879,690.03 : x
  2. Step 2: Convert to fraction form
    1,285,469.25/1,929,171.84 = 879,690.03/x
  3. Step 3: Cross multiply
    1,285,469.25x = 1,929,171.84 × 879,690.03
  4. Step 4: Simplify right side
    1,285,469.25x = 1,697,073,233,804.76
  5. Step 5: Solve for x
    x = 1,697,073,233,804.76/1,285,469.25
  6. Step 6: Final answer
    x = 1,320,197.46

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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.