Home / 721,278.54-1,082,016.23-300,456

Finding the Fourth Proportional to 721,278.54, 1,082,016.23 and 300,456

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Solution

The fourth proportional to 721,278.54, 1,082,016.23 and 300,456 is: 450,725.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,278.54 : 1,082,016.23 = 300,456 : x
  2. Step 2: Convert to fraction form
    721,278.54/1,082,016.23 = 300,456/x
  3. Step 3: Cross multiply
    721,278.54x = 1,082,016.23 × 300,456
  4. Step 4: Simplify right side
    721,278.54x = 325,098,266,898.60
  5. Step 5: Solve for x
    x = 325,098,266,898.60/721,278.54
  6. Step 6: Final answer
    x = 450,725.00

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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.