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Finding the Third Proportional to 1,780,139.50 and 2,758,168

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Solution

The third proportional to 1,780,139.50 and 2,758,168 is: 4,273,536.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,139.50 : 2,758,168 = 2,758,168 : x
  2. Step 2: Convert to fraction form
    1,780,139.50/2,758,168 = 2,758,168/x
  3. Step 3: Cross multiply
    1,780,139.50x = 2,758,168 × 2,758,168
  4. Step 4: Simplify right side
    1,780,139.50x = 7,607,490,716,224
  5. Step 5: Solve for x
    x = 7,607,490,716,224/1,780,139.50
  6. Step 6: Final answer
    x = 4,273,536.27

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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.