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Finding the Third Proportional to 493,128 and 630,126

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Solution

The third proportional to 493,128 and 630,126 is: 805,184.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,128 : 630,126 = 630,126 : x
  2. Step 2: Convert to fraction form
    493,128/630,126 = 630,126/x
  3. Step 3: Cross multiply
    493,128x = 630,126 × 630,126
  4. Step 4: Simplify right side
    493,128x = 397,058,775,876
  5. Step 5: Solve for x
    x = 397,058,775,876/493,128
  6. Step 6: Final answer
    x = 805,184.00

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.