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Finding the Third Proportional to 630,423 and 1,383,318

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Solution

The third proportional to 630,423 and 1,383,318 is: 3,035,372.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,423 : 1,383,318 = 1,383,318 : x
  2. Step 2: Convert to fraction form
    630,423/1,383,318 = 1,383,318/x
  3. Step 3: Cross multiply
    630,423x = 1,383,318 × 1,383,318
  4. Step 4: Simplify right side
    630,423x = 1,913,568,689,124
  5. Step 5: Solve for x
    x = 1,913,568,689,124/630,423
  6. Step 6: Final answer
    x = 3,035,372.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.