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Finding the Third Proportional to 1,028,812.50 and 1,387,813.50

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Solution

The third proportional to 1,028,812.50 and 1,387,813.50 is: 1,872,086.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,812.50 : 1,387,813.50 = 1,387,813.50 : x
  2. Step 2: Convert to fraction form
    1,028,812.50/1,387,813.50 = 1,387,813.50/x
  3. Step 3: Cross multiply
    1,028,812.50x = 1,387,813.50 × 1,387,813.50
  4. Step 4: Simplify right side
    1,028,812.50x = 1,926,026,310,782.25
  5. Step 5: Solve for x
    x = 1,926,026,310,782.25/1,028,812.50
  6. Step 6: Final answer
    x = 1,872,086.81

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.