Home / 678,983.41-1,018,696.20-323,951.50

Finding the Fourth Proportional to 678,983.41, 1,018,696.20 and 323,951.50

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Solution

The fourth proportional to 678,983.41, 1,018,696.20 and 323,951.50 is: 486,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,983.41 : 1,018,696.20 = 323,951.50 : x
  2. Step 2: Convert to fraction form
    678,983.41/1,018,696.20 = 323,951.50/x
  3. Step 3: Cross multiply
    678,983.41x = 1,018,696.20 × 323,951.50
  4. Step 4: Simplify right side
    678,983.41x = 330,008,162,034.30
  5. Step 5: Solve for x
    x = 330,008,162,034.30/678,983.41
  6. Step 6: Final answer
    x = 486,032.73

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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.