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Finding the Third Proportional to 315,483.03 and 489,429.62

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Solution

The third proportional to 315,483.03 and 489,429.62 is: 759,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,483.03 : 489,429.62 = 489,429.62 : x
  2. Step 2: Convert to fraction form
    315,483.03/489,429.62 = 489,429.62/x
  3. Step 3: Cross multiply
    315,483.03x = 489,429.62 × 489,429.62
  4. Step 4: Simplify right side
    315,483.03x = 239,541,349,343.90
  5. Step 5: Solve for x
    x = 239,541,349,343.90/315,483.03
  6. Step 6: Final answer
    x = 759,284.43

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.