Home / 721,577.34-1,082,191.05-300,623.58

Finding the Fourth Proportional to 721,577.34, 1,082,191.05 and 300,623.58

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Solution

The fourth proportional to 721,577.34, 1,082,191.05 and 300,623.58 is: 450,862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,577.34 : 1,082,191.05 = 300,623.58 : x
  2. Step 2: Convert to fraction form
    721,577.34/1,082,191.05 = 300,623.58/x
  3. Step 3: Cross multiply
    721,577.34x = 1,082,191.05 × 300,623.58
  4. Step 4: Simplify right side
    721,577.34x = 325,332,147,694.96
  5. Step 5: Solve for x
    x = 325,332,147,694.96/721,577.34
  6. Step 6: Final answer
    x = 450,862.48

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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.