Finding the Third Proportional to 643,455 and 1,372,407.75
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Solution
The third proportional to 643,455 and 1,372,407.75 is: 2,927,171.34
Step by Step Solution
- Step 1: Write the proportion equation
643,455 : 1,372,407.75 = 1,372,407.75 : x - Step 2: Convert to fraction form
643,455/1,372,407.75 = 1,372,407.75/x - Step 3: Cross multiply
643,455x = 1,372,407.75 × 1,372,407.75 - Step 4: Simplify right side
643,455x = 1,883,503,032,260.06 - Step 5: Solve for x
x = 1,883,503,032,260.06/643,455 - Step 6: Final answer
x = 2,927,171.34
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These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.