Home / 1,138,620.78-1,708,019.37-380,464.88

Finding the Fourth Proportional to 1,138,620.78, 1,708,019.37 and 380,464.88

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Solution

The fourth proportional to 1,138,620.78, 1,708,019.37 and 380,464.88 is: 570,726.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,620.78 : 1,708,019.37 = 380,464.88 : x
  2. Step 2: Convert to fraction form
    1,138,620.78/1,708,019.37 = 380,464.88/x
  3. Step 3: Cross multiply
    1,138,620.78x = 1,708,019.37 × 380,464.88
  4. Step 4: Simplify right side
    1,138,620.78x = 649,841,374,202.30
  5. Step 5: Solve for x
    x = 649,841,374,202.30/1,138,620.78
  6. Step 6: Final answer
    x = 570,726.78

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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.