Home / 683,288.40-1,024,908.30-309,311.40

Finding the Fourth Proportional to 683,288.40, 1,024,908.30 and 309,311.40

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Solution

The fourth proportional to 683,288.40, 1,024,908.30 and 309,311.40 is: 463,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,288.40 : 1,024,908.30 = 309,311.40 : x
  2. Step 2: Convert to fraction form
    683,288.40/1,024,908.30 = 309,311.40/x
  3. Step 3: Cross multiply
    683,288.40x = 1,024,908.30 × 309,311.40
  4. Step 4: Simplify right side
    683,288.40x = 317,015,821,144.62
  5. Step 5: Solve for x
    x = 317,015,821,144.62/683,288.40
  6. Step 6: Final answer
    x = 463,956.10

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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.