Home / 1,268,920.43-1,902,620.32-403,981.55

Finding the Fourth Proportional to 1,268,920.43, 1,902,620.32 and 403,981.55

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Solution

The fourth proportional to 1,268,920.43, 1,902,620.32 and 403,981.55 is: 605,730.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,920.43 : 1,902,620.32 = 403,981.55 : x
  2. Step 2: Convert to fraction form
    1,268,920.43/1,902,620.32 = 403,981.55/x
  3. Step 3: Cross multiply
    1,268,920.43x = 1,902,620.32 × 403,981.55
  4. Step 4: Simplify right side
    1,268,920.43x = 768,623,509,681.69
  5. Step 5: Solve for x
    x = 768,623,509,681.69/1,268,920.43
  6. Step 6: Final answer
    x = 605,730.26

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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.