Home / 678,963.44-1,018,438.68-412,797.44

Finding the Fourth Proportional to 678,963.44, 1,018,438.68 and 412,797.44

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Solution

The fourth proportional to 678,963.44, 1,018,438.68 and 412,797.44 is: 619,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,963.44 : 1,018,438.68 = 412,797.44 : x
  2. Step 2: Convert to fraction form
    678,963.44/1,018,438.68 = 412,797.44/x
  3. Step 3: Cross multiply
    678,963.44x = 1,018,438.68 × 412,797.44
  4. Step 4: Simplify right side
    678,963.44x = 420,408,874,808.79
  5. Step 5: Solve for x
    x = 420,408,874,808.79/678,963.44
  6. Step 6: Final answer
    x = 619,192.22

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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.