Home / 876,440.88-1,311,202.26-663,821.28

Finding the Fourth Proportional to 876,440.88, 1,311,202.26 and 663,821.28

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Solution

The fourth proportional to 876,440.88, 1,311,202.26 and 663,821.28 is: 993,112.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,440.88 : 1,311,202.26 = 663,821.28 : x
  2. Step 2: Convert to fraction form
    876,440.88/1,311,202.26 = 663,821.28/x
  3. Step 3: Cross multiply
    876,440.88x = 1,311,202.26 × 663,821.28
  4. Step 4: Simplify right side
    876,440.88x = 870,403,962,572.09
  5. Step 5: Solve for x
    x = 870,403,962,572.09/876,440.88
  6. Step 6: Final answer
    x = 993,112.01

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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.