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Finding the Third Proportional to 455,292 and 668,175.75

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Solution

The third proportional to 455,292 and 668,175.75 is: 980,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,292 : 668,175.75 = 668,175.75 : x
  2. Step 2: Convert to fraction form
    455,292/668,175.75 = 668,175.75/x
  3. Step 3: Cross multiply
    455,292x = 668,175.75 × 668,175.75
  4. Step 4: Simplify right side
    455,292x = 446,458,832,888.06
  5. Step 5: Solve for x
    x = 446,458,832,888.06/455,292
  6. Step 6: Final answer
    x = 980,598.90

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.