Home / 3,409,188.32-5,112,453.36-1,278,110.72

Finding the Fourth Proportional to 3,409,188.32, 5,112,453.36 and 1,278,110.72

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Solution

The fourth proportional to 3,409,188.32, 5,112,453.36 and 1,278,110.72 is: 1,916,667.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409,188.32 : 5,112,453.36 = 1,278,110.72 : x
  2. Step 2: Convert to fraction form
    3,409,188.32/5,112,453.36 = 1,278,110.72/x
  3. Step 3: Cross multiply
    3,409,188.32x = 5,112,453.36 × 1,278,110.72
  4. Step 4: Simplify right side
    3,409,188.32x = 6,534,281,444,916.02
  5. Step 5: Solve for x
    x = 6,534,281,444,916.02/3,409,188.32
  6. Step 6: Final answer
    x = 1,916,667.79

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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.