Home / 693,753.72-1,040,409.10-220,328.34

Finding the Fourth Proportional to 693,753.72, 1,040,409.10 and 220,328.34

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Solution

The fourth proportional to 693,753.72, 1,040,409.10 and 220,328.34 is: 330,422.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,753.72 : 1,040,409.10 = 220,328.34 : x
  2. Step 2: Convert to fraction form
    693,753.72/1,040,409.10 = 220,328.34/x
  3. Step 3: Cross multiply
    693,753.72x = 1,040,409.10 × 220,328.34
  4. Step 4: Simplify right side
    693,753.72x = 229,231,609,923.89
  5. Step 5: Solve for x
    x = 229,231,609,923.89/693,753.72
  6. Step 6: Final answer
    x = 330,422.17

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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.