Home / 1,268,393.64-1,902,787.02-426,879.72

Finding the Fourth Proportional to 1,268,393.64, 1,902,787.02 and 426,879.72

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Solution

The fourth proportional to 1,268,393.64, 1,902,787.02 and 426,879.72 is: 640,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,393.64 : 1,902,787.02 = 426,879.72 : x
  2. Step 2: Convert to fraction form
    1,268,393.64/1,902,787.02 = 426,879.72/x
  3. Step 3: Cross multiply
    1,268,393.64x = 1,902,787.02 × 426,879.72
  4. Step 4: Simplify right side
    1,268,393.64x = 812,261,190,317.23
  5. Step 5: Solve for x
    x = 812,261,190,317.23/1,268,393.64
  6. Step 6: Final answer
    x = 640,385.73

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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.