Home / 2,219,891.78-3,328,489.26-870,437.64

Finding the Fourth Proportional to 2,219,891.78, 3,328,489.26 and 870,437.64

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Solution

The fourth proportional to 2,219,891.78, 3,328,489.26 and 870,437.64 is: 1,305,127.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219,891.78 : 3,328,489.26 = 870,437.64 : x
  2. Step 2: Convert to fraction form
    2,219,891.78/3,328,489.26 = 870,437.64/x
  3. Step 3: Cross multiply
    2,219,891.78x = 3,328,489.26 × 870,437.64
  4. Step 4: Simplify right side
    2,219,891.78x = 2,897,242,336,239.75
  5. Step 5: Solve for x
    x = 2,897,242,336,239.75/2,219,891.78
  6. Step 6: Final answer
    x = 1,305,127.74

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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.