Home / 721,573.84-1,082,185.80-300,620.08

Finding the Fourth Proportional to 721,573.84, 1,082,185.80 and 300,620.08

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Solution

The fourth proportional to 721,573.84, 1,082,185.80 and 300,620.08 is: 450,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,573.84 : 1,082,185.80 = 300,620.08 : x
  2. Step 2: Convert to fraction form
    721,573.84/1,082,185.80 = 300,620.08/x
  3. Step 3: Cross multiply
    721,573.84x = 1,082,185.80 × 300,620.08
  4. Step 4: Simplify right side
    721,573.84x = 325,326,781,770.86
  5. Step 5: Solve for x
    x = 325,326,781,770.86/721,573.84
  6. Step 6: Final answer
    x = 450,857.23

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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.