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Finding the Third Proportional to 653,433.75 and 990,002.25

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Solution

The third proportional to 653,433.75 and 990,002.25 is: 1,499,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,433.75 : 990,002.25 = 990,002.25 : x
  2. Step 2: Convert to fraction form
    653,433.75/990,002.25 = 990,002.25/x
  3. Step 3: Cross multiply
    653,433.75x = 990,002.25 × 990,002.25
  4. Step 4: Simplify right side
    653,433.75x = 980,104,455,005.06
  5. Step 5: Solve for x
    x = 980,104,455,005.06/653,433.75
  6. Step 6: Final answer
    x = 1,499,929.34

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.