Home / 2,421,004.11-3,340,857.72-1,388,458.53

Finding the Fourth Proportional to 2,421,004.11, 3,340,857.72 and 1,388,458.53

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Solution

The fourth proportional to 2,421,004.11, 3,340,857.72 and 1,388,458.53 is: 1,915,999.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421,004.11 : 3,340,857.72 = 1,388,458.53 : x
  2. Step 2: Convert to fraction form
    2,421,004.11/3,340,857.72 = 1,388,458.53/x
  3. Step 3: Cross multiply
    2,421,004.11x = 3,340,857.72 × 1,388,458.53
  4. Step 4: Simplify right side
    2,421,004.11x = 4,638,642,398,850.35
  5. Step 5: Solve for x
    x = 4,638,642,398,850.35/2,421,004.11
  6. Step 6: Final answer
    x = 1,915,999.39

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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.