Home / 1,268,180.40-1,902,529.80-426,817.20

Finding the Fourth Proportional to 1,268,180.40, 1,902,529.80 and 426,817.20

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Solution

The fourth proportional to 1,268,180.40, 1,902,529.80 and 426,817.20 is: 640,313.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,180.40 : 1,902,529.80 = 426,817.20 : x
  2. Step 2: Convert to fraction form
    1,268,180.40/1,902,529.80 = 426,817.20/x
  3. Step 3: Cross multiply
    1,268,180.40x = 1,902,529.80 × 426,817.20
  4. Step 4: Simplify right side
    1,268,180.40x = 812,032,442,152.56
  5. Step 5: Solve for x
    x = 812,032,442,152.56/1,268,180.40
  6. Step 6: Final answer
    x = 640,313.04

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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.