Home / 379,209.75-523,309.46-209,454.81

Finding the Fourth Proportional to 379,209.75, 523,309.46 and 209,454.81

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Solution

The fourth proportional to 379,209.75, 523,309.46 and 209,454.81 is: 289,047.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,209.75 : 523,309.46 = 209,454.81 : x
  2. Step 2: Convert to fraction form
    379,209.75/523,309.46 = 209,454.81/x
  3. Step 3: Cross multiply
    379,209.75x = 523,309.46 × 209,454.81
  4. Step 4: Simplify right side
    379,209.75x = 109,609,682,468.23
  5. Step 5: Solve for x
    x = 109,609,682,468.23/379,209.75
  6. Step 6: Final answer
    x = 289,047.64

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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.