Home / 672,620.68-1,008,627.40-192,738.72

Finding the Fourth Proportional to 672,620.68, 1,008,627.40 and 192,738.72

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Solution

The fourth proportional to 672,620.68, 1,008,627.40 and 192,738.72 is: 289,021.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,620.68 : 1,008,627.40 = 192,738.72 : x
  2. Step 2: Convert to fraction form
    672,620.68/1,008,627.40 = 192,738.72/x
  3. Step 3: Cross multiply
    672,620.68x = 1,008,627.40 × 192,738.72
  4. Step 4: Simplify right side
    672,620.68x = 194,401,554,032.93
  5. Step 5: Solve for x
    x = 194,401,554,032.93/672,620.68
  6. Step 6: Final answer
    x = 289,021.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.