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Finding the Third Proportional to 520,318 and 1,054,989

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Solution

The third proportional to 520,318 and 1,054,989 is: 2,139,079.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,318 : 1,054,989 = 1,054,989 : x
  2. Step 2: Convert to fraction form
    520,318/1,054,989 = 1,054,989/x
  3. Step 3: Cross multiply
    520,318x = 1,054,989 × 1,054,989
  4. Step 4: Simplify right side
    520,318x = 1,113,001,790,121
  5. Step 5: Solve for x
    x = 1,113,001,790,121/520,318
  6. Step 6: Final answer
    x = 2,139,079.93

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.