Home / 725,605.72-1,088,410.70-220,170.84

Finding the Fourth Proportional to 725,605.72, 1,088,410.70 and 220,170.84

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Solution

The fourth proportional to 725,605.72, 1,088,410.70 and 220,170.84 is: 330,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,605.72 : 1,088,410.70 = 220,170.84 : x
  2. Step 2: Convert to fraction form
    725,605.72/1,088,410.70 = 220,170.84/x
  3. Step 3: Cross multiply
    725,605.72x = 1,088,410.70 × 220,170.84
  4. Step 4: Simplify right side
    725,605.72x = 239,636,298,083.99
  5. Step 5: Solve for x
    x = 239,636,298,083.99/725,605.72
  6. Step 6: Final answer
    x = 330,256.90

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1.5x scale

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.