Home / 379,557.42-523,788.69-209,791.56

Finding the Fourth Proportional to 379,557.42, 523,788.69 and 209,791.56

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Solution

The fourth proportional to 379,557.42, 523,788.69 and 209,791.56 is: 289,512.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,557.42 : 523,788.69 = 209,791.56 : x
  2. Step 2: Convert to fraction form
    379,557.42/523,788.69 = 209,791.56/x
  3. Step 3: Cross multiply
    379,557.42x = 523,788.69 × 209,791.56
  4. Step 4: Simplify right side
    379,557.42x = 109,886,446,385.46
  5. Step 5: Solve for x
    x = 109,886,446,385.46/379,557.42
  6. Step 6: Final answer
    x = 289,512.05

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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.