Home / 685,152.33-945,486.09-379,229.30

Finding the Fourth Proportional to 685,152.33, 945,486.09 and 379,229.30

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Solution

The fourth proportional to 685,152.33, 945,486.09 and 379,229.30 is: 523,323.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,152.33 : 945,486.09 = 379,229.30 : x
  2. Step 2: Convert to fraction form
    685,152.33/945,486.09 = 379,229.30/x
  3. Step 3: Cross multiply
    685,152.33x = 945,486.09 × 379,229.30
  4. Step 4: Simplify right side
    685,152.33x = 358,556,028,070.44
  5. Step 5: Solve for x
    x = 358,556,028,070.44/685,152.33
  6. Step 6: Final answer
    x = 523,323.08

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1.5x scale

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.