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Finding the Third Proportional to 426,288.45 and 911,660.06

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Solution

The third proportional to 426,288.45 and 911,660.06 is: 1,949,675.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,288.45 : 911,660.06 = 911,660.06 : x
  2. Step 2: Convert to fraction form
    426,288.45/911,660.06 = 911,660.06/x
  3. Step 3: Cross multiply
    426,288.45x = 911,660.06 × 911,660.06
  4. Step 4: Simplify right side
    426,288.45x = 831,124,069,557.50
  5. Step 5: Solve for x
    x = 831,124,069,557.50/426,288.45
  6. Step 6: Final answer
    x = 1,949,675.34

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.