Home / 409,821.58-565,563.72-228,531.73

Finding the Fourth Proportional to 409,821.58, 565,563.72 and 228,531.73

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Solution

The fourth proportional to 409,821.58, 565,563.72 and 228,531.73 is: 315,379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,821.58 : 565,563.72 = 228,531.73 : x
  2. Step 2: Convert to fraction form
    409,821.58/565,563.72 = 228,531.73/x
  3. Step 3: Cross multiply
    409,821.58x = 565,563.72 × 228,531.73
  4. Step 4: Simplify right side
    409,821.58x = 129,249,255,356.84
  5. Step 5: Solve for x
    x = 129,249,255,356.84/409,821.58
  6. Step 6: Final answer
    x = 315,379.33

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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.