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Finding the Third Proportional to 553,054 and 879,394

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Solution

The third proportional to 553,054 and 879,394 is: 1,398,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,054 : 879,394 = 879,394 : x
  2. Step 2: Convert to fraction form
    553,054/879,394 = 879,394/x
  3. Step 3: Cross multiply
    553,054x = 879,394 × 879,394
  4. Step 4: Simplify right side
    553,054x = 773,333,807,236
  5. Step 5: Solve for x
    x = 773,333,807,236/553,054
  6. Step 6: Final answer
    x = 1,398,297.11

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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.