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Finding the Third Proportional to 277,031 and 429,803

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Solution

The third proportional to 277,031 and 429,803 is: 666,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,031 : 429,803 = 429,803 : x
  2. Step 2: Convert to fraction form
    277,031/429,803 = 429,803/x
  3. Step 3: Cross multiply
    277,031x = 429,803 × 429,803
  4. Step 4: Simplify right side
    277,031x = 184,730,618,809
  5. Step 5: Solve for x
    x = 184,730,618,809/277,031
  6. Step 6: Final answer
    x = 666,822.91

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.