Home / 1,212,443.16-1,818,137.22-347,687.64

Finding the Fourth Proportional to 1,212,443.16, 1,818,137.22 and 347,687.64

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Solution

The fourth proportional to 1,212,443.16, 1,818,137.22 and 347,687.64 is: 521,380.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,443.16 : 1,818,137.22 = 347,687.64 : x
  2. Step 2: Convert to fraction form
    1,212,443.16/1,818,137.22 = 347,687.64/x
  3. Step 3: Cross multiply
    1,212,443.16x = 1,818,137.22 × 347,687.64
  4. Step 4: Simplify right side
    1,212,443.16x = 632,143,839,217.96
  5. Step 5: Solve for x
    x = 632,143,839,217.96/1,212,443.16
  6. Step 6: Final answer
    x = 521,380.19

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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.