Home / 818,846.46-1,228,650.12-313,240.30

Finding the Fourth Proportional to 818,846.46, 1,228,650.12 and 313,240.30

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Solution

The fourth proportional to 818,846.46, 1,228,650.12 and 313,240.30 is: 470,005.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,846.46 : 1,228,650.12 = 313,240.30 : x
  2. Step 2: Convert to fraction form
    818,846.46/1,228,650.12 = 313,240.30/x
  3. Step 3: Cross multiply
    818,846.46x = 1,228,650.12 × 313,240.30
  4. Step 4: Simplify right side
    818,846.46x = 384,862,732,183.84
  5. Step 5: Solve for x
    x = 384,862,732,183.84/818,846.46
  6. Step 6: Final answer
    x = 470,005.98

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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.