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Finding the Third Proportional to 1,427,498 and 3,090,220

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Solution

The third proportional to 1,427,498 and 3,090,220 is: 6,689,648.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,498 : 3,090,220 = 3,090,220 : x
  2. Step 2: Convert to fraction form
    1,427,498/3,090,220 = 3,090,220/x
  3. Step 3: Cross multiply
    1,427,498x = 3,090,220 × 3,090,220
  4. Step 4: Simplify right side
    1,427,498x = 9,549,459,648,400
  5. Step 5: Solve for x
    x = 9,549,459,648,400/1,427,498
  6. Step 6: Final answer
    x = 6,689,648.36

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.