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Finding the Third Proportional to 458,871.75 and 645,043.50

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Solution

The third proportional to 458,871.75 and 645,043.50 is: 906,748.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,871.75 : 645,043.50 = 645,043.50 : x
  2. Step 2: Convert to fraction form
    458,871.75/645,043.50 = 645,043.50/x
  3. Step 3: Cross multiply
    458,871.75x = 645,043.50 × 645,043.50
  4. Step 4: Simplify right side
    458,871.75x = 416,081,116,892.25
  5. Step 5: Solve for x
    x = 416,081,116,892.25/458,871.75
  6. Step 6: Final answer
    x = 906,748.16

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.