Home / 2,540,420.21-3,505,649.32-1,507,971.53

Finding the Fourth Proportional to 2,540,420.21, 3,505,649.32 and 1,507,971.53

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Solution

The fourth proportional to 2,540,420.21, 3,505,649.32 and 1,507,971.53 is: 2,080,923.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540,420.21 : 3,505,649.32 = 1,507,971.53 : x
  2. Step 2: Convert to fraction form
    2,540,420.21/3,505,649.32 = 1,507,971.53/x
  3. Step 3: Cross multiply
    2,540,420.21x = 3,505,649.32 × 1,507,971.53
  4. Step 4: Simplify right side
    2,540,420.21x = 5,286,419,379,372.95
  5. Step 5: Solve for x
    x = 5,286,419,379,372.95/2,540,420.21
  6. Step 6: Final answer
    x = 2,080,923.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.