Home / 1,311,118.95-1,809,343.65-767,358.27

Finding the Fourth Proportional to 1,311,118.95, 1,809,343.65 and 767,358.27

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Solution

The fourth proportional to 1,311,118.95, 1,809,343.65 and 767,358.27 is: 1,058,954.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,118.95 : 1,809,343.65 = 767,358.27 : x
  2. Step 2: Convert to fraction form
    1,311,118.95/1,809,343.65 = 767,358.27/x
  3. Step 3: Cross multiply
    1,311,118.95x = 1,809,343.65 × 767,358.27
  4. Step 4: Simplify right side
    1,311,118.95x = 1,388,414,813,099.49
  5. Step 5: Solve for x
    x = 1,388,414,813,099.49/1,311,118.95
  6. Step 6: Final answer
    x = 1,058,954.12

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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.