Home / 720,972.11-1,082,108.19-384,293.18

Finding the Fourth Proportional to 720,972.11, 1,082,108.19 and 384,293.18

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Solution

The fourth proportional to 720,972.11, 1,082,108.19 and 384,293.18 is: 576,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,972.11 : 1,082,108.19 = 384,293.18 : x
  2. Step 2: Convert to fraction form
    720,972.11/1,082,108.19 = 384,293.18/x
  3. Step 3: Cross multiply
    720,972.11x = 1,082,108.19 × 384,293.18
  4. Step 4: Simplify right side
    720,972.11x = 415,846,800,144.42
  5. Step 5: Solve for x
    x = 415,846,800,144.42/720,972.11
  6. Step 6: Final answer
    x = 576,786.25

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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.