Home / 693,486.10-1,040,310.15-220,219.30

Finding the Fourth Proportional to 693,486.10, 1,040,310.15 and 220,219.30

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Solution

The fourth proportional to 693,486.10, 1,040,310.15 and 220,219.30 is: 330,354.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,486.10 : 1,040,310.15 = 220,219.30 : x
  2. Step 2: Convert to fraction form
    693,486.10/1,040,310.15 = 220,219.30/x
  3. Step 3: Cross multiply
    693,486.10x = 1,040,310.15 × 220,219.30
  4. Step 4: Simplify right side
    693,486.10x = 229,096,373,015.90
  5. Step 5: Solve for x
    x = 229,096,373,015.90/693,486.10
  6. Step 6: Final answer
    x = 330,354.67

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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.