Home / 445,910.40-667,828.80-304,905.60

Finding the Fourth Proportional to 445,910.40, 667,828.80 and 304,905.60

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Solution

The fourth proportional to 445,910.40, 667,828.80 and 304,905.60 is: 456,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,910.40 : 667,828.80 = 304,905.60 : x
  2. Step 2: Convert to fraction form
    445,910.40/667,828.80 = 304,905.60/x
  3. Step 3: Cross multiply
    445,910.40x = 667,828.80 × 304,905.60
  4. Step 4: Simplify right side
    445,910.40x = 203,624,740,961.28
  5. Step 5: Solve for x
    x = 203,624,740,961.28/445,910.40
  6. Step 6: Final answer
    x = 456,649.45

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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.