Home / 1,311,558.28-1,809,954.52-760,381.43

Finding the Fourth Proportional to 1,311,558.28, 1,809,954.52 and 760,381.43

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Solution

The fourth proportional to 1,311,558.28, 1,809,954.52 and 760,381.43 is: 1,049,328.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,558.28 : 1,809,954.52 = 760,381.43 : x
  2. Step 2: Convert to fraction form
    1,311,558.28/1,809,954.52 = 760,381.43/x
  3. Step 3: Cross multiply
    1,311,558.28x = 1,809,954.52 × 760,381.43
  4. Step 4: Simplify right side
    1,311,558.28x = 1,376,255,795,201.84
  5. Step 5: Solve for x
    x = 1,376,255,795,201.84/1,311,558.28
  6. Step 6: Final answer
    x = 1,049,328.74

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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.