Finding the Third Proportional to 668,779 and 1,490,726
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Solution
The third proportional to 668,779 and 1,490,726 is: 3,322,867.50
Step by Step Solution
- Step 1: Write the proportion equation
668,779 : 1,490,726 = 1,490,726 : x - Step 2: Convert to fraction form
668,779/1,490,726 = 1,490,726/x - Step 3: Cross multiply
668,779x = 1,490,726 × 1,490,726 - Step 4: Simplify right side
668,779x = 2,222,264,007,076 - Step 5: Solve for x
x = 2,222,264,007,076/668,779 - Step 6: Final answer
x = 3,322,867.50
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Why These Related Problems?
These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.