Home / 721,309.80-1,082,063.14-300,487.26

Finding the Fourth Proportional to 721,309.80, 1,082,063.14 and 300,487.26

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Solution

The fourth proportional to 721,309.80, 1,082,063.14 and 300,487.26 is: 450,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,309.80 : 1,082,063.14 = 300,487.26 : x
  2. Step 2: Convert to fraction form
    721,309.80/1,082,063.14 = 300,487.26/x
  3. Step 3: Cross multiply
    721,309.80x = 1,082,063.14 × 300,487.26
  4. Step 4: Simplify right side
    721,309.80x = 325,146,188,085.60
  5. Step 5: Solve for x
    x = 325,146,188,085.60/721,309.80
  6. Step 6: Final answer
    x = 450,771.90

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1.5x scale

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.