Home / 721,574.34-1,082,186.55-300,620.58

Finding the Fourth Proportional to 721,574.34, 1,082,186.55 and 300,620.58

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Solution

The fourth proportional to 721,574.34, 1,082,186.55 and 300,620.58 is: 450,857.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,574.34 : 1,082,186.55 = 300,620.58 : x
  2. Step 2: Convert to fraction form
    721,574.34/1,082,186.55 = 300,620.58/x
  3. Step 3: Cross multiply
    721,574.34x = 1,082,186.55 × 300,620.58
  4. Step 4: Simplify right side
    721,574.34x = 325,327,548,329.20
  5. Step 5: Solve for x
    x = 325,327,548,329.20/721,574.34
  6. Step 6: Final answer
    x = 450,857.98

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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.