Finding the Third Proportional to 317,418.75 and 643,038.75
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Solution
The third proportional to 317,418.75 and 643,038.75 is: 1,302,691.90
Step by Step Solution
- Step 1: Write the proportion equation
317,418.75 : 643,038.75 = 643,038.75 : x - Step 2: Convert to fraction form
317,418.75/643,038.75 = 643,038.75/x - Step 3: Cross multiply
317,418.75x = 643,038.75 × 643,038.75 - Step 4: Simplify right side
317,418.75x = 413,498,834,001.56 - Step 5: Solve for x
x = 413,498,834,001.56/317,418.75 - Step 6: Final answer
x = 1,302,691.90
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These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.