Home / 427,783.08-642,837.78-228,244.44

Finding the Fourth Proportional to 427,783.08, 642,837.78 and 228,244.44

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Solution

The fourth proportional to 427,783.08, 642,837.78 and 228,244.44 is: 342,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,783.08 : 642,837.78 = 228,244.44 : x
  2. Step 2: Convert to fraction form
    427,783.08/642,837.78 = 228,244.44/x
  3. Step 3: Cross multiply
    427,783.08x = 642,837.78 × 228,244.44
  4. Step 4: Simplify right side
    427,783.08x = 146,724,149,106.94
  5. Step 5: Solve for x
    x = 146,724,149,106.94/427,783.08
  6. Step 6: Final answer
    x = 342,987.27

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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.