Home / 1,213,755.40-1,821,289.20-539,940.70

Finding the Fourth Proportional to 1,213,755.40, 1,821,289.20 and 539,940.70

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Solution

The fourth proportional to 1,213,755.40, 1,821,289.20 and 539,940.70 is: 810,202.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,755.40 : 1,821,289.20 = 539,940.70 : x
  2. Step 2: Convert to fraction form
    1,213,755.40/1,821,289.20 = 539,940.70/x
  3. Step 3: Cross multiply
    1,213,755.40x = 1,821,289.20 × 539,940.70
  4. Step 4: Simplify right side
    1,213,755.40x = 983,388,165,550.44
  5. Step 5: Solve for x
    x = 983,388,165,550.44/1,213,755.40
  6. Step 6: Final answer
    x = 810,202.92

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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.