Home / 481,296.06-664,489.80-309,283.38

Finding the Fourth Proportional to 481,296.06, 664,489.80 and 309,283.38

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Solution

The fourth proportional to 481,296.06, 664,489.80 and 309,283.38 is: 427,004.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,296.06 : 664,489.80 = 309,283.38 : x
  2. Step 2: Convert to fraction form
    481,296.06/664,489.80 = 309,283.38/x
  3. Step 3: Cross multiply
    481,296.06x = 664,489.80 × 309,283.38
  4. Step 4: Simplify right side
    481,296.06x = 205,515,651,319.52
  5. Step 5: Solve for x
    x = 205,515,651,319.52/481,296.06
  6. Step 6: Final answer
    x = 427,004.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.