Home / 379,367.41-523,520.79-209,617.33

Finding the Fourth Proportional to 379,367.41, 523,520.79 and 209,617.33

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Solution

The fourth proportional to 379,367.41, 523,520.79 and 209,617.33 is: 289,268.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,367.41 : 523,520.79 = 209,617.33 : x
  2. Step 2: Convert to fraction form
    379,367.41/523,520.79 = 209,617.33/x
  3. Step 3: Cross multiply
    379,367.41x = 523,520.79 × 209,617.33
  4. Step 4: Simplify right side
    379,367.41x = 109,739,030,199.29
  5. Step 5: Solve for x
    x = 109,739,030,199.29/379,367.41
  6. Step 6: Final answer
    x = 289,268.47

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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.