Home / 1,555,589.45-2,147,187.89-902,380.55

Finding the Fourth Proportional to 1,555,589.45, 2,147,187.89 and 902,380.55

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Solution

The fourth proportional to 1,555,589.45, 2,147,187.89 and 902,380.55 is: 1,245,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,589.45 : 2,147,187.89 = 902,380.55 : x
  2. Step 2: Convert to fraction form
    1,555,589.45/2,147,187.89 = 902,380.55/x
  3. Step 3: Cross multiply
    1,555,589.45x = 2,147,187.89 × 902,380.55
  4. Step 4: Simplify right side
    1,555,589.45x = 1,937,580,580,651.55
  5. Step 5: Solve for x
    x = 1,937,580,580,651.55/1,555,589.45
  6. Step 6: Final answer
    x = 1,245,560.37

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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.