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Finding the Third Proportional to 668,020 and 1,018,878

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Solution

The third proportional to 668,020 and 1,018,878 is: 1,554,013.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,020 : 1,018,878 = 1,018,878 : x
  2. Step 2: Convert to fraction form
    668,020/1,018,878 = 1,018,878/x
  3. Step 3: Cross multiply
    668,020x = 1,018,878 × 1,018,878
  4. Step 4: Simplify right side
    668,020x = 1,038,112,378,884
  5. Step 5: Solve for x
    x = 1,038,112,378,884/668,020
  6. Step 6: Final answer
    x = 1,554,013.92

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.