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Finding the Third Proportional to 1,239,732.75 and 1,878,312

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Solution

The third proportional to 1,239,732.75 and 1,878,312 is: 2,845,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,732.75 : 1,878,312 = 1,878,312 : x
  2. Step 2: Convert to fraction form
    1,239,732.75/1,878,312 = 1,878,312/x
  3. Step 3: Cross multiply
    1,239,732.75x = 1,878,312 × 1,878,312
  4. Step 4: Simplify right side
    1,239,732.75x = 3,528,055,969,344
  5. Step 5: Solve for x
    x = 3,528,055,969,344/1,239,732.75
  6. Step 6: Final answer
    x = 2,845,819.77

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.