Home / 721,310.29-1,082,063.90-300,487.75

Finding the Fourth Proportional to 721,310.29, 1,082,063.90 and 300,487.75

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Solution

The fourth proportional to 721,310.29, 1,082,063.90 and 300,487.75 is: 450,772.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,310.29 : 1,082,063.90 = 300,487.75 : x
  2. Step 2: Convert to fraction form
    721,310.29/1,082,063.90 = 300,487.75/x
  3. Step 3: Cross multiply
    721,310.29x = 1,082,063.90 × 300,487.75
  4. Step 4: Simplify right side
    721,310.29x = 325,146,946,667.23
  5. Step 5: Solve for x
    x = 325,146,946,667.23/721,310.29
  6. Step 6: Final answer
    x = 450,772.64

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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.