Home / 721,316.82-1,082,073.66-300,494.28

Finding the Fourth Proportional to 721,316.82, 1,082,073.66 and 300,494.28

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Solution

The fourth proportional to 721,316.82, 1,082,073.66 and 300,494.28 is: 450,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,316.82 : 1,082,073.66 = 300,494.28 : x
  2. Step 2: Convert to fraction form
    721,316.82/1,082,073.66 = 300,494.28/x
  3. Step 3: Cross multiply
    721,316.82x = 1,082,073.66 × 300,494.28
  4. Step 4: Simplify right side
    721,316.82x = 325,156,945,368.67
  5. Step 5: Solve for x
    x = 325,156,945,368.67/721,316.82
  6. Step 6: Final answer
    x = 450,782.43

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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.