Home / 1,420,999.23-2,131,642.32-461,414.71

Finding the Fourth Proportional to 1,420,999.23, 2,131,642.32 and 461,414.71

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Solution

The fourth proportional to 1,420,999.23, 2,131,642.32 and 461,414.71 is: 692,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,999.23 : 2,131,642.32 = 461,414.71 : x
  2. Step 2: Convert to fraction form
    1,420,999.23/2,131,642.32 = 461,414.71/x
  3. Step 3: Cross multiply
    1,420,999.23x = 2,131,642.32 × 461,414.71
  4. Step 4: Simplify right side
    1,420,999.23x = 983,571,115,847.12
  5. Step 5: Solve for x
    x = 983,571,115,847.12/1,420,999.23
  6. Step 6: Final answer
    x = 692,168.65

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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.