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Finding the Third Proportional to 374,478 and 819,018

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Solution

The third proportional to 374,478 and 819,018 is: 1,791,268.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,478 : 819,018 = 819,018 : x
  2. Step 2: Convert to fraction form
    374,478/819,018 = 819,018/x
  3. Step 3: Cross multiply
    374,478x = 819,018 × 819,018
  4. Step 4: Simplify right side
    374,478x = 670,790,484,324
  5. Step 5: Solve for x
    x = 670,790,484,324/374,478
  6. Step 6: Final answer
    x = 1,791,268.07

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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.