Home / 1,311,333.12-1,809,451.44-730,552.32

Finding the Fourth Proportional to 1,311,333.12, 1,809,451.44 and 730,552.32

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Solution

The fourth proportional to 1,311,333.12, 1,809,451.44 and 730,552.32 is: 1,008,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,333.12 : 1,809,451.44 = 730,552.32 : x
  2. Step 2: Convert to fraction form
    1,311,333.12/1,809,451.44 = 730,552.32/x
  3. Step 3: Cross multiply
    1,311,333.12x = 1,809,451.44 × 730,552.32
  4. Step 4: Simplify right side
    1,311,333.12x = 1,321,898,947,419.34
  5. Step 5: Solve for x
    x = 1,321,898,947,419.34/1,311,333.12
  6. Step 6: Final answer
    x = 1,008,057.32

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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.