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Finding the Third Proportional to 375,881 and 819,621

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Solution

The third proportional to 375,881 and 819,621 is: 1,787,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,881 : 819,621 = 819,621 : x
  2. Step 2: Convert to fraction form
    375,881/819,621 = 819,621/x
  3. Step 3: Cross multiply
    375,881x = 819,621 × 819,621
  4. Step 4: Simplify right side
    375,881x = 671,778,583,641
  5. Step 5: Solve for x
    x = 671,778,583,641/375,881
  6. Step 6: Final answer
    x = 1,787,210.80

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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.