Home / 485,846.36-670,437.57-268,057.61

Finding the Fourth Proportional to 485,846.36, 670,437.57 and 268,057.61

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Solution

The fourth proportional to 485,846.36, 670,437.57 and 268,057.61 is: 369,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,846.36 : 670,437.57 = 268,057.61 : x
  2. Step 2: Convert to fraction form
    485,846.36/670,437.57 = 268,057.61/x
  3. Step 3: Cross multiply
    485,846.36x = 670,437.57 × 268,057.61
  4. Step 4: Simplify right side
    485,846.36x = 179,715,892,668.41
  5. Step 5: Solve for x
    x = 179,715,892,668.41/485,846.36
  6. Step 6: Final answer
    x = 369,902.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.