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Finding the Third Proportional to 319,482 and 681,590.25

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Solution

The third proportional to 319,482 and 681,590.25 is: 1,454,120.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,482 : 681,590.25 = 681,590.25 : x
  2. Step 2: Convert to fraction form
    319,482/681,590.25 = 681,590.25/x
  3. Step 3: Cross multiply
    319,482x = 681,590.25 × 681,590.25
  4. Step 4: Simplify right side
    319,482x = 464,565,268,895.06
  5. Step 5: Solve for x
    x = 464,565,268,895.06/319,482
  6. Step 6: Final answer
    x = 1,454,120.32

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.