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Finding the Third Proportional to 630,615 and 906,556.50

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Solution

The third proportional to 630,615 and 906,556.50 is: 1,303,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,615 : 906,556.50 = 906,556.50 : x
  2. Step 2: Convert to fraction form
    630,615/906,556.50 = 906,556.50/x
  3. Step 3: Cross multiply
    630,615x = 906,556.50 × 906,556.50
  4. Step 4: Simplify right side
    630,615x = 821,844,687,692.25
  5. Step 5: Solve for x
    x = 821,844,687,692.25/630,615
  6. Step 6: Final answer
    x = 1,303,243.16

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.