Home / 729,469.68-1,006,836.12-427,760.88

Finding the Fourth Proportional to 729,469.68, 1,006,836.12 and 427,760.88

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Solution

The fourth proportional to 729,469.68, 1,006,836.12 and 427,760.88 is: 590,408.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,469.68 : 1,006,836.12 = 427,760.88 : x
  2. Step 2: Convert to fraction form
    729,469.68/1,006,836.12 = 427,760.88/x
  3. Step 3: Cross multiply
    729,469.68x = 1,006,836.12 × 427,760.88
  4. Step 4: Simplify right side
    729,469.68x = 430,685,104,706.99
  5. Step 5: Solve for x
    x = 430,685,104,706.99/729,469.68
  6. Step 6: Final answer
    x = 590,408.51

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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.