Home / 820,303.21-1,230,646.17-280,563.67

Finding the Fourth Proportional to 820,303.21, 1,230,646.17 and 280,563.67

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Solution

The fourth proportional to 820,303.21, 1,230,646.17 and 280,563.67 is: 420,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,303.21 : 1,230,646.17 = 280,563.67 : x
  2. Step 2: Convert to fraction form
    820,303.21/1,230,646.17 = 280,563.67/x
  3. Step 3: Cross multiply
    820,303.21x = 1,230,646.17 × 280,563.67
  4. Step 4: Simplify right side
    820,303.21x = 345,274,605,926.64
  5. Step 5: Solve for x
    x = 345,274,605,926.64/820,303.21
  6. Step 6: Final answer
    x = 420,910.95

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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.