Home / 1,260,963.60-1,891,618.20-419,427.60

Finding the Fourth Proportional to 1,260,963.60, 1,891,618.20 and 419,427.60

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Solution

The fourth proportional to 1,260,963.60, 1,891,618.20 and 419,427.60 is: 629,198.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,963.60 : 1,891,618.20 = 419,427.60 : x
  2. Step 2: Convert to fraction form
    1,260,963.60/1,891,618.20 = 419,427.60/x
  3. Step 3: Cross multiply
    1,260,963.60x = 1,891,618.20 × 419,427.60
  4. Step 4: Simplify right side
    1,260,963.60x = 793,396,881,742.32
  5. Step 5: Solve for x
    x = 793,396,881,742.32/1,260,963.60
  6. Step 6: Final answer
    x = 629,198.88

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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.