Home / 1,206,495.20-1,664,268.46-722,780.21

Finding the Fourth Proportional to 1,206,495.20, 1,664,268.46 and 722,780.21

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Solution

The fourth proportional to 1,206,495.20, 1,664,268.46 and 722,780.21 is: 997,020.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,495.20 : 1,664,268.46 = 722,780.21 : x
  2. Step 2: Convert to fraction form
    1,206,495.20/1,664,268.46 = 722,780.21/x
  3. Step 3: Cross multiply
    1,206,495.20x = 1,664,268.46 × 722,780.21
  4. Step 4: Simplify right side
    1,206,495.20x = 1,202,900,309,368.90
  5. Step 5: Solve for x
    x = 1,202,900,309,368.90/1,206,495.20
  6. Step 6: Final answer
    x = 997,020.38

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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.