Home / 3,945,110.40-5,917,665.60-1,420,437.60

Finding the Fourth Proportional to 3,945,110.40, 5,917,665.60 and 1,420,437.60

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Solution

The fourth proportional to 3,945,110.40, 5,917,665.60 and 1,420,437.60 is: 2,130,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945,110.40 : 5,917,665.60 = 1,420,437.60 : x
  2. Step 2: Convert to fraction form
    3,945,110.40/5,917,665.60 = 1,420,437.60/x
  3. Step 3: Cross multiply
    3,945,110.40x = 5,917,665.60 × 1,420,437.60
  4. Step 4: Simplify right side
    3,945,110.40x = 8,405,674,722,466.56
  5. Step 5: Solve for x
    x = 8,405,674,722,466.56/3,945,110.40
  6. Step 6: Final answer
    x = 2,130,656.40

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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.