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Finding the Third Proportional to 620,008 and 877,553

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Solution

The third proportional to 620,008 and 877,553 is: 1,242,079.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,008 : 877,553 = 877,553 : x
  2. Step 2: Convert to fraction form
    620,008/877,553 = 877,553/x
  3. Step 3: Cross multiply
    620,008x = 877,553 × 877,553
  4. Step 4: Simplify right side
    620,008x = 770,099,267,809
  5. Step 5: Solve for x
    x = 770,099,267,809/620,008
  6. Step 6: Final answer
    x = 1,242,079.57

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.