Home / 379,272.21-523,520.38-301,889.80

Finding the Fourth Proportional to 379,272.21, 523,520.38 and 301,889.80

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Solution

The fourth proportional to 379,272.21, 523,520.38 and 301,889.80 is: 416,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,272.21 : 523,520.38 = 301,889.80 : x
  2. Step 2: Convert to fraction form
    379,272.21/523,520.38 = 301,889.80/x
  3. Step 3: Cross multiply
    379,272.21x = 523,520.38 × 301,889.80
  4. Step 4: Simplify right side
    379,272.21x = 158,045,463,845.89
  5. Step 5: Solve for x
    x = 158,045,463,845.89/379,272.21
  6. Step 6: Final answer
    x = 416,707.21

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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.