Home / 429,790.06-644,462.61-192,928.78

Finding the Fourth Proportional to 429,790.06, 644,462.61 and 192,928.78

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Solution

The fourth proportional to 429,790.06, 644,462.61 and 192,928.78 is: 289,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,790.06 : 644,462.61 = 192,928.78 : x
  2. Step 2: Convert to fraction form
    429,790.06/644,462.61 = 192,928.78/x
  3. Step 3: Cross multiply
    429,790.06x = 644,462.61 × 192,928.78
  4. Step 4: Simplify right side
    429,790.06x = 124,335,385,102.92
  5. Step 5: Solve for x
    x = 124,335,385,102.92/429,790.06
  6. Step 6: Final answer
    x = 289,293.30

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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.