Home / 678,809.27-1,018,198.13-341,759.43

Finding the Fourth Proportional to 678,809.27, 1,018,198.13 and 341,759.43

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Solution

The fourth proportional to 678,809.27, 1,018,198.13 and 341,759.43 is: 512,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,809.27 : 1,018,198.13 = 341,759.43 : x
  2. Step 2: Convert to fraction form
    678,809.27/1,018,198.13 = 341,759.43/x
  3. Step 3: Cross multiply
    678,809.27x = 1,018,198.13 × 341,759.43
  4. Step 4: Simplify right side
    678,809.27x = 347,978,810,827.07
  5. Step 5: Solve for x
    x = 347,978,810,827.07/678,809.27
  6. Step 6: Final answer
    x = 512,631.20

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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.