Home / 1,268,291.21-1,902,414.88-426,842.96

Finding the Fourth Proportional to 1,268,291.21, 1,902,414.88 and 426,842.96

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Solution

The fourth proportional to 1,268,291.21, 1,902,414.88 and 426,842.96 is: 640,257.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,291.21 : 1,902,414.88 = 426,842.96 : x
  2. Step 2: Convert to fraction form
    1,268,291.21/1,902,414.88 = 426,842.96/x
  3. Step 3: Cross multiply
    1,268,291.21x = 1,902,414.88 × 426,842.96
  4. Step 4: Simplify right side
    1,268,291.21x = 812,032,402,216.18
  5. Step 5: Solve for x
    x = 812,032,402,216.18/1,268,291.21
  6. Step 6: Final answer
    x = 640,257.06

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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.