Home / 1,311,126.96-1,809,354.66-767,366.30

Finding the Fourth Proportional to 1,311,126.96, 1,809,354.66 and 767,366.30

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Solution

The fourth proportional to 1,311,126.96, 1,809,354.66 and 767,366.30 is: 1,058,965.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,126.96 : 1,809,354.66 = 767,366.30 : x
  2. Step 2: Convert to fraction form
    1,311,126.96/1,809,354.66 = 767,366.30/x
  3. Step 3: Cross multiply
    1,311,126.96x = 1,809,354.66 × 767,366.30
  4. Step 4: Simplify right side
    1,311,126.96x = 1,388,437,790,831.96
  5. Step 5: Solve for x
    x = 1,388,437,790,831.96/1,311,126.96
  6. Step 6: Final answer
    x = 1,058,965.18

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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.