Home / 725,478.48-1,088,216.42-192,999.51

Finding the Fourth Proportional to 725,478.48, 1,088,216.42 and 192,999.51

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Solution

The fourth proportional to 725,478.48, 1,088,216.42 and 192,999.51 is: 289,498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,478.48 : 1,088,216.42 = 192,999.51 : x
  2. Step 2: Convert to fraction form
    725,478.48/1,088,216.42 = 192,999.51/x
  3. Step 3: Cross multiply
    725,478.48x = 1,088,216.42 × 192,999.51
  4. Step 4: Simplify right side
    725,478.48x = 210,025,234,868.96
  5. Step 5: Solve for x
    x = 210,025,234,868.96/725,478.48
  6. Step 6: Final answer
    x = 289,498.92

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Double scale
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Similar ratio
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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.