Home / 693,401.80-1,040,102.70-220,124.20

Finding the Fourth Proportional to 693,401.80, 1,040,102.70 and 220,124.20

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Solution

The fourth proportional to 693,401.80, 1,040,102.70 and 220,124.20 is: 330,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,401.80 : 1,040,102.70 = 220,124.20 : x
  2. Step 2: Convert to fraction form
    693,401.80/1,040,102.70 = 220,124.20/x
  3. Step 3: Cross multiply
    693,401.80x = 1,040,102.70 × 220,124.20
  4. Step 4: Simplify right side
    693,401.80x = 228,951,774,755.34
  5. Step 5: Solve for x
    x = 228,951,774,755.34/693,401.80
  6. Step 6: Final answer
    x = 330,186.30

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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.