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Finding the Third Proportional to 315,059 and 478,415

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Solution

The third proportional to 315,059 and 478,415 is: 726,470.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,059 : 478,415 = 478,415 : x
  2. Step 2: Convert to fraction form
    315,059/478,415 = 478,415/x
  3. Step 3: Cross multiply
    315,059x = 478,415 × 478,415
  4. Step 4: Simplify right side
    315,059x = 228,880,912,225
  5. Step 5: Solve for x
    x = 228,880,912,225/315,059
  6. Step 6: Final answer
    x = 726,470.00

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.