Home / 820,504.40-1,231,102.20-446,795.60

Finding the Fourth Proportional to 820,504.40, 1,231,102.20 and 446,795.60

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Solution

The fourth proportional to 820,504.40, 1,231,102.20 and 446,795.60 is: 670,381.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,504.40 : 1,231,102.20 = 446,795.60 : x
  2. Step 2: Convert to fraction form
    820,504.40/1,231,102.20 = 446,795.60/x
  3. Step 3: Cross multiply
    820,504.40x = 1,231,102.20 × 446,795.60
  4. Step 4: Simplify right side
    820,504.40x = 550,051,046,110.32
  5. Step 5: Solve for x
    x = 550,051,046,110.32/820,504.40
  6. Step 6: Final answer
    x = 670,381.59

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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.