Home / 1,081,279.20-1,621,940.40-282,511.20

Finding the Fourth Proportional to 1,081,279.20, 1,621,940.40 and 282,511.20

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Solution

The fourth proportional to 1,081,279.20, 1,621,940.40 and 282,511.20 is: 423,772.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,279.20 : 1,621,940.40 = 282,511.20 : x
  2. Step 2: Convert to fraction form
    1,081,279.20/1,621,940.40 = 282,511.20/x
  3. Step 3: Cross multiply
    1,081,279.20x = 1,621,940.40 × 282,511.20
  4. Step 4: Simplify right side
    1,081,279.20x = 458,216,328,732.48
  5. Step 5: Solve for x
    x = 458,216,328,732.48/1,081,279.20
  6. Step 6: Final answer
    x = 423,772.44

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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.