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Finding the Third Proportional to 988,500 and 2,158,273.50

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Solution

The third proportional to 988,500 and 2,158,273.50 is: 4,712,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,500 : 2,158,273.50 = 2,158,273.50 : x
  2. Step 2: Convert to fraction form
    988,500/2,158,273.50 = 2,158,273.50/x
  3. Step 3: Cross multiply
    988,500x = 2,158,273.50 × 2,158,273.50
  4. Step 4: Simplify right side
    988,500x = 4,658,144,500,802.25
  5. Step 5: Solve for x
    x = 4,658,144,500,802.25/988,500
  6. Step 6: Final answer
    x = 4,712,336.37

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.