Home / 427,780.36-590,329.72-236,789.64

Finding the Fourth Proportional to 427,780.36, 590,329.72 and 236,789.64

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Solution

The fourth proportional to 427,780.36, 590,329.72 and 236,789.64 is: 326,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,780.36 : 590,329.72 = 236,789.64 : x
  2. Step 2: Convert to fraction form
    427,780.36/590,329.72 = 236,789.64/x
  3. Step 3: Cross multiply
    427,780.36x = 590,329.72 × 236,789.64
  4. Step 4: Simplify right side
    427,780.36x = 139,783,961,880.10
  5. Step 5: Solve for x
    x = 139,783,961,880.10/427,780.36
  6. Step 6: Final answer
    x = 326,765.73

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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.