Home / 680,940.40-1,021,993.80-302,443.60

Finding the Fourth Proportional to 680,940.40, 1,021,993.80 and 302,443.60

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Solution

The fourth proportional to 680,940.40, 1,021,993.80 and 302,443.60 is: 453,924.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,940.40 : 1,021,993.80 = 302,443.60 : x
  2. Step 2: Convert to fraction form
    680,940.40/1,021,993.80 = 302,443.60/x
  3. Step 3: Cross multiply
    680,940.40x = 1,021,993.80 × 302,443.60
  4. Step 4: Simplify right side
    680,940.40x = 309,095,484,049.68
  5. Step 5: Solve for x
    x = 309,095,484,049.68/680,940.40
  6. Step 6: Final answer
    x = 453,924.43

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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.