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Finding the Third Proportional to 435,391.88 and 672,489

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Solution

The third proportional to 435,391.88 and 672,489 is: 1,038,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,391.88 : 672,489 = 672,489 : x
  2. Step 2: Convert to fraction form
    435,391.88/672,489 = 672,489/x
  3. Step 3: Cross multiply
    435,391.88x = 672,489 × 672,489
  4. Step 4: Simplify right side
    435,391.88x = 452,241,455,121
  5. Step 5: Solve for x
    x = 452,241,455,121/435,391.88
  6. Step 6: Final answer
    x = 1,038,699.80

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.