Home / 769,391.50-1,061,760.72-429,859.75

Finding the Fourth Proportional to 769,391.50, 1,061,760.72 and 429,859.75

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Solution

The fourth proportional to 769,391.50, 1,061,760.72 and 429,859.75 is: 593,206.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,391.50 : 1,061,760.72 = 429,859.75 : x
  2. Step 2: Convert to fraction form
    769,391.50/1,061,760.72 = 429,859.75/x
  3. Step 3: Cross multiply
    769,391.50x = 1,061,760.72 × 429,859.75
  4. Step 4: Simplify right side
    769,391.50x = 456,408,197,659.02
  5. Step 5: Solve for x
    x = 456,408,197,659.02/769,391.50
  6. Step 6: Final answer
    x = 593,206.71

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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.