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Finding the Third Proportional to 430,051.50 and 645,241.50

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Solution

The third proportional to 430,051.50 and 645,241.50 is: 968,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,051.50 : 645,241.50 = 645,241.50 : x
  2. Step 2: Convert to fraction form
    430,051.50/645,241.50 = 645,241.50/x
  3. Step 3: Cross multiply
    430,051.50x = 645,241.50 × 645,241.50
  4. Step 4: Simplify right side
    430,051.50x = 416,336,593,322.25
  5. Step 5: Solve for x
    x = 416,336,593,322.25/430,051.50
  6. Step 6: Final answer
    x = 968,108.69

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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.