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Finding the Third Proportional to 1,358,140 and 2,878,180

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Solution

The third proportional to 1,358,140 and 2,878,180 is: 6,099,459.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,140 : 2,878,180 = 2,878,180 : x
  2. Step 2: Convert to fraction form
    1,358,140/2,878,180 = 2,878,180/x
  3. Step 3: Cross multiply
    1,358,140x = 2,878,180 × 2,878,180
  4. Step 4: Simplify right side
    1,358,140x = 8,283,920,112,400
  5. Step 5: Solve for x
    x = 8,283,920,112,400/1,358,140
  6. Step 6: Final answer
    x = 6,099,459.64

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.