Home / 1,201,390.20-1,802,085.30-728,998.20

Finding the Fourth Proportional to 1,201,390.20, 1,802,085.30 and 728,998.20

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Solution

The fourth proportional to 1,201,390.20, 1,802,085.30 and 728,998.20 is: 1,093,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,390.20 : 1,802,085.30 = 728,998.20 : x
  2. Step 2: Convert to fraction form
    1,201,390.20/1,802,085.30 = 728,998.20/x
  3. Step 3: Cross multiply
    1,201,390.20x = 1,802,085.30 × 728,998.20
  4. Step 4: Simplify right side
    1,201,390.20x = 1,313,716,939,946.46
  5. Step 5: Solve for x
    x = 1,313,716,939,946.46/1,201,390.20
  6. Step 6: Final answer
    x = 1,093,497.30

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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.