Home / 721,301.04-1,082,049.93-300,478.50

Finding the Fourth Proportional to 721,301.04, 1,082,049.93 and 300,478.50

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Solution

The fourth proportional to 721,301.04, 1,082,049.93 and 300,478.50 is: 450,758.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,301.04 : 1,082,049.93 = 300,478.50 : x
  2. Step 2: Convert to fraction form
    721,301.04/1,082,049.93 = 300,478.50/x
  3. Step 3: Cross multiply
    721,301.04x = 1,082,049.93 × 300,478.50
  4. Step 4: Simplify right side
    721,301.04x = 325,132,739,891.51
  5. Step 5: Solve for x
    x = 325,132,739,891.51/721,301.04
  6. Step 6: Final answer
    x = 450,758.73

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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.