Home / 1,368,171.83-2,052,589.91-421,542.51

Finding the Fourth Proportional to 1,368,171.83, 2,052,589.91 and 421,542.51

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Solution

The fourth proportional to 1,368,171.83, 2,052,589.91 and 421,542.51 is: 632,416.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,171.83 : 2,052,589.91 = 421,542.51 : x
  2. Step 2: Convert to fraction form
    1,368,171.83/2,052,589.91 = 421,542.51/x
  3. Step 3: Cross multiply
    1,368,171.83x = 2,052,589.91 × 421,542.51
  4. Step 4: Simplify right side
    1,368,171.83x = 865,253,902,662.07
  5. Step 5: Solve for x
    x = 865,253,902,662.07/1,368,171.83
  6. Step 6: Final answer
    x = 632,416.11

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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.