Home / 1,268,246.40-1,902,628.80-426,883.20

Finding the Fourth Proportional to 1,268,246.40, 1,902,628.80 and 426,883.20

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Solution

The fourth proportional to 1,268,246.40, 1,902,628.80 and 426,883.20 is: 640,412.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,246.40 : 1,902,628.80 = 426,883.20 : x
  2. Step 2: Convert to fraction form
    1,268,246.40/1,902,628.80 = 426,883.20/x
  3. Step 3: Cross multiply
    1,268,246.40x = 1,902,628.80 × 426,883.20
  4. Step 4: Simplify right side
    1,268,246.40x = 812,200,270,556.16
  5. Step 5: Solve for x
    x = 812,200,270,556.16/1,268,246.40
  6. Step 6: Final answer
    x = 640,412.04

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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.