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Finding the Third Proportional to 1,240,237.69 and 1,860,356.81

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Solution

The third proportional to 1,240,237.69 and 1,860,356.81 is: 2,790,535.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,237.69 : 1,860,356.81 = 1,860,356.81 : x
  2. Step 2: Convert to fraction form
    1,240,237.69/1,860,356.81 = 1,860,356.81/x
  3. Step 3: Cross multiply
    1,240,237.69x = 1,860,356.81 × 1,860,356.81
  4. Step 4: Simplify right side
    1,240,237.69x = 3,460,927,469,815.16
  5. Step 5: Solve for x
    x = 3,460,927,469,815.16/1,240,237.69
  6. Step 6: Final answer
    x = 2,790,535.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.