Home / 1,284,375.40-1,926,951.81-485,901.70

Finding the Fourth Proportional to 1,284,375.40, 1,926,951.81 and 485,901.70

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Solution

The fourth proportional to 1,284,375.40, 1,926,951.81 and 485,901.70 is: 728,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,375.40 : 1,926,951.81 = 485,901.70 : x
  2. Step 2: Convert to fraction form
    1,284,375.40/1,926,951.81 = 485,901.70/x
  3. Step 3: Cross multiply
    1,284,375.40x = 1,926,951.81 × 485,901.70
  4. Step 4: Simplify right side
    1,284,375.40x = 936,309,160,297.08
  5. Step 5: Solve for x
    x = 936,309,160,297.08/1,284,375.40
  6. Step 6: Final answer
    x = 728,999.61

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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.