Home / 678,920.68-1,018,491.18-229,668.85

Finding the Fourth Proportional to 678,920.68, 1,018,491.18 and 229,668.85

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Solution

The fourth proportional to 678,920.68, 1,018,491.18 and 229,668.85 is: 344,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,920.68 : 1,018,491.18 = 229,668.85 : x
  2. Step 2: Convert to fraction form
    678,920.68/1,018,491.18 = 229,668.85/x
  3. Step 3: Cross multiply
    678,920.68x = 1,018,491.18 × 229,668.85
  4. Step 4: Simplify right side
    678,920.68x = 233,915,698,045.74
  5. Step 5: Solve for x
    x = 233,915,698,045.74/678,920.68
  6. Step 6: Final answer
    x = 344,540.54

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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.