Home / 678,260.12-1,017,379.82-229,296.38

Finding the Fourth Proportional to 678,260.12, 1,017,379.82 and 229,296.38

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Solution

The fourth proportional to 678,260.12, 1,017,379.82 and 229,296.38 is: 343,941.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,260.12 : 1,017,379.82 = 229,296.38 : x
  2. Step 2: Convert to fraction form
    678,260.12/1,017,379.82 = 229,296.38/x
  3. Step 3: Cross multiply
    678,260.12x = 1,017,379.82 × 229,296.38
  4. Step 4: Simplify right side
    678,260.12x = 233,281,509,811.05
  5. Step 5: Solve for x
    x = 233,281,509,811.05/678,260.12
  6. Step 6: Final answer
    x = 343,941.07

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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.