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Finding the Third Proportional to 1,257,120 and 1,946,146.50

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Solution

The third proportional to 1,257,120 and 1,946,146.50 is: 3,012,827.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,120 : 1,946,146.50 = 1,946,146.50 : x
  2. Step 2: Convert to fraction form
    1,257,120/1,946,146.50 = 1,946,146.50/x
  3. Step 3: Cross multiply
    1,257,120x = 1,946,146.50 × 1,946,146.50
  4. Step 4: Simplify right side
    1,257,120x = 3,787,486,199,462.25
  5. Step 5: Solve for x
    x = 3,787,486,199,462.25/1,257,120
  6. Step 6: Final answer
    x = 3,012,827.89

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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.