Finding the Third Proportional to 391,239 and 834,153.75
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Solution
The third proportional to 391,239 and 834,153.75 is: 1,778,484.45
Step by Step Solution
- Step 1: Write the proportion equation
391,239 : 834,153.75 = 834,153.75 : x - Step 2: Convert to fraction form
391,239/834,153.75 = 834,153.75/x - Step 3: Cross multiply
391,239x = 834,153.75 × 834,153.75 - Step 4: Simplify right side
391,239x = 695,812,478,639.06 - Step 5: Solve for x
x = 695,812,478,639.06/391,239 - Step 6: Final answer
x = 1,778,484.45
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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.