Home / 419,281.21-578,609.46-228,295.75

Finding the Fourth Proportional to 419,281.21, 578,609.46 and 228,295.75

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Solution

The fourth proportional to 419,281.21, 578,609.46 and 228,295.75 is: 315,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,281.21 : 578,609.46 = 228,295.75 : x
  2. Step 2: Convert to fraction form
    419,281.21/578,609.46 = 228,295.75/x
  3. Step 3: Cross multiply
    419,281.21x = 578,609.46 × 228,295.75
  4. Step 4: Simplify right side
    419,281.21x = 132,094,080,627.80
  5. Step 5: Solve for x
    x = 132,094,080,627.80/419,281.21
  6. Step 6: Final answer
    x = 315,048.89

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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.