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Finding the Third Proportional to 874,236 and 1,390,122

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Solution

The third proportional to 874,236 and 1,390,122 is: 2,210,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,236 : 1,390,122 = 1,390,122 : x
  2. Step 2: Convert to fraction form
    874,236/1,390,122 = 1,390,122/x
  3. Step 3: Cross multiply
    874,236x = 1,390,122 × 1,390,122
  4. Step 4: Simplify right side
    874,236x = 1,932,439,174,884
  5. Step 5: Solve for x
    x = 1,932,439,174,884/874,236
  6. Step 6: Final answer
    x = 2,210,431.94

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.