Home / 721,572.84-1,082,184.30-300,619.08

Finding the Fourth Proportional to 721,572.84, 1,082,184.30 and 300,619.08

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Solution

The fourth proportional to 721,572.84, 1,082,184.30 and 300,619.08 is: 450,855.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,572.84 : 1,082,184.30 = 300,619.08 : x
  2. Step 2: Convert to fraction form
    721,572.84/1,082,184.30 = 300,619.08/x
  3. Step 3: Cross multiply
    721,572.84x = 1,082,184.30 × 300,619.08
  4. Step 4: Simplify right side
    721,572.84x = 325,325,248,656.44
  5. Step 5: Solve for x
    x = 325,325,248,656.44/721,572.84
  6. Step 6: Final answer
    x = 450,855.73

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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.