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Finding the Fourth Proportional to 546,999, 754,896.48 and 305,328.60

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Solution

The fourth proportional to 546,999, 754,896.48 and 305,328.60 is: 421,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,999 : 754,896.48 = 305,328.60 : x
  2. Step 2: Convert to fraction form
    546,999/754,896.48 = 305,328.60/x
  3. Step 3: Cross multiply
    546,999x = 754,896.48 × 305,328.60
  4. Step 4: Simplify right side
    546,999x = 230,491,485,383.33
  5. Step 5: Solve for x
    x = 230,491,485,383.33/546,999
  6. Step 6: Final answer
    x = 421,374.60

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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.