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Finding the Third Proportional to 455,503.50 and 665,698.50

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Solution

The third proportional to 455,503.50 and 665,698.50 is: 972,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,503.50 : 665,698.50 = 665,698.50 : x
  2. Step 2: Convert to fraction form
    455,503.50/665,698.50 = 665,698.50/x
  3. Step 3: Cross multiply
    455,503.50x = 665,698.50 × 665,698.50
  4. Step 4: Simplify right side
    455,503.50x = 443,154,492,902.25
  5. Step 5: Solve for x
    x = 443,154,492,902.25/455,503.50
  6. Step 6: Final answer
    x = 972,889.33

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.