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Finding the Third Proportional to 315,525 and 692,286

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Solution

The third proportional to 315,525 and 692,286 is: 1,518,928.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,525 : 692,286 = 692,286 : x
  2. Step 2: Convert to fraction form
    315,525/692,286 = 692,286/x
  3. Step 3: Cross multiply
    315,525x = 692,286 × 692,286
  4. Step 4: Simplify right side
    315,525x = 479,259,905,796
  5. Step 5: Solve for x
    x = 479,259,905,796/315,525
  6. Step 6: Final answer
    x = 1,518,928.47

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.