Home / 685,110.33-945,445.23-379,187.30

Finding the Fourth Proportional to 685,110.33, 945,445.23 and 379,187.30

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Solution

The fourth proportional to 685,110.33, 945,445.23 and 379,187.30 is: 523,274.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,110.33 : 945,445.23 = 379,187.30 : x
  2. Step 2: Convert to fraction form
    685,110.33/945,445.23 = 379,187.30/x
  3. Step 3: Cross multiply
    685,110.33x = 945,445.23 × 379,187.30
  4. Step 4: Simplify right side
    685,110.33x = 358,500,826,425.19
  5. Step 5: Solve for x
    x = 358,500,826,425.19/685,110.33
  6. Step 6: Final answer
    x = 523,274.59

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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.