Home / 678,679.21-1,017,850.60-229,390.10

Finding the Fourth Proportional to 678,679.21, 1,017,850.60 and 229,390.10

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Solution

The fourth proportional to 678,679.21, 1,017,850.60 and 229,390.10 is: 344,028.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,679.21 : 1,017,850.60 = 229,390.10 : x
  2. Step 2: Convert to fraction form
    678,679.21/1,017,850.60 = 229,390.10/x
  3. Step 3: Cross multiply
    678,679.21x = 1,017,850.60 × 229,390.10
  4. Step 4: Simplify right side
    678,679.21x = 233,484,850,919.06
  5. Step 5: Solve for x
    x = 233,484,850,919.06/678,679.21
  6. Step 6: Final answer
    x = 344,028.29

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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.