Home / 678,261.12-1,017,381.32-229,297.36

Finding the Fourth Proportional to 678,261.12, 1,017,381.32 and 229,297.36

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Solution

The fourth proportional to 678,261.12, 1,017,381.32 and 229,297.36 is: 343,942.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,261.12 : 1,017,381.32 = 229,297.36 : x
  2. Step 2: Convert to fraction form
    678,261.12/1,017,381.32 = 229,297.36/x
  3. Step 3: Cross multiply
    678,261.12x = 1,017,381.32 × 229,297.36
  4. Step 4: Simplify right side
    678,261.12x = 233,282,850,789.32
  5. Step 5: Solve for x
    x = 233,282,850,789.32/678,261.12
  6. Step 6: Final answer
    x = 343,942.54

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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.