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Finding the Third Proportional to 313,083 and 670,438.50

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Solution

The third proportional to 313,083 and 670,438.50 is: 1,435,682.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,083 : 670,438.50 = 670,438.50 : x
  2. Step 2: Convert to fraction form
    313,083/670,438.50 = 670,438.50/x
  3. Step 3: Cross multiply
    313,083x = 670,438.50 × 670,438.50
  4. Step 4: Simplify right side
    313,083x = 449,487,782,282.25
  5. Step 5: Solve for x
    x = 449,487,782,282.25/313,083
  6. Step 6: Final answer
    x = 1,435,682.49

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.