Home / 3,987,431.52-5,980,857.10-1,558,129.74

Finding the Fourth Proportional to 3,987,431.52, 5,980,857.10 and 1,558,129.74

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Solution

The fourth proportional to 3,987,431.52, 5,980,857.10 and 1,558,129.74 is: 2,337,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,431.52 : 5,980,857.10 = 1,558,129.74 : x
  2. Step 2: Convert to fraction form
    3,987,431.52/5,980,857.10 = 1,558,129.74/x
  3. Step 3: Cross multiply
    3,987,431.52x = 5,980,857.10 × 1,558,129.74
  4. Step 4: Simplify right side
    3,987,431.52x = 9,318,951,318,200.15
  5. Step 5: Solve for x
    x = 9,318,951,318,200.15/3,987,431.52
  6. Step 6: Final answer
    x = 2,337,081.22

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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.