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Finding the Third Proportional to 290,520 and 633,312

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Solution

The third proportional to 290,520 and 633,312 is: 1,380,573.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,520 : 633,312 = 633,312 : x
  2. Step 2: Convert to fraction form
    290,520/633,312 = 633,312/x
  3. Step 3: Cross multiply
    290,520x = 633,312 × 633,312
  4. Step 4: Simplify right side
    290,520x = 401,084,089,344
  5. Step 5: Solve for x
    x = 401,084,089,344/290,520
  6. Step 6: Final answer
    x = 1,380,573.07

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.