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Finding the Third Proportional to 387,355.50 and 843,303.50

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Solution

The third proportional to 387,355.50 and 843,303.50 is: 1,835,938.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,355.50 : 843,303.50 = 843,303.50 : x
  2. Step 2: Convert to fraction form
    387,355.50/843,303.50 = 843,303.50/x
  3. Step 3: Cross multiply
    387,355.50x = 843,303.50 × 843,303.50
  4. Step 4: Simplify right side
    387,355.50x = 711,160,793,112.25
  5. Step 5: Solve for x
    x = 711,160,793,112.25/387,355.50
  6. Step 6: Final answer
    x = 1,835,938.29

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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.