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Finding the Third Proportional to 1,257,430.50 and 1,994,362.88

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Solution

The third proportional to 1,257,430.50 and 1,994,362.88 is: 3,163,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,430.50 : 1,994,362.88 = 1,994,362.88 : x
  2. Step 2: Convert to fraction form
    1,257,430.50/1,994,362.88 = 1,994,362.88/x
  3. Step 3: Cross multiply
    1,257,430.50x = 1,994,362.88 × 1,994,362.88
  4. Step 4: Simplify right side
    1,257,430.50x = 3,977,483,277,178.27
  5. Step 5: Solve for x
    x = 3,977,483,277,178.27/1,257,430.50
  6. Step 6: Final answer
    x = 3,163,183.39

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.