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Finding the Third Proportional to 287,503.88 and 630,366.75

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Solution

The third proportional to 287,503.88 and 630,366.75 is: 1,382,110.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,503.88 : 630,366.75 = 630,366.75 : x
  2. Step 2: Convert to fraction form
    287,503.88/630,366.75 = 630,366.75/x
  3. Step 3: Cross multiply
    287,503.88x = 630,366.75 × 630,366.75
  4. Step 4: Simplify right side
    287,503.88x = 397,362,239,505.56
  5. Step 5: Solve for x
    x = 397,362,239,505.56/287,503.88
  6. Step 6: Final answer
    x = 1,382,110.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.