Finding the Third Proportional to 391,216.50 and 830,409.75
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Solution
The third proportional to 391,216.50 and 830,409.75 is: 1,762,656.62
Step by Step Solution
- Step 1: Write the proportion equation
391,216.50 : 830,409.75 = 830,409.75 : x - Step 2: Convert to fraction form
391,216.50/830,409.75 = 830,409.75/x - Step 3: Cross multiply
391,216.50x = 830,409.75 × 830,409.75 - Step 4: Simplify right side
391,216.50x = 689,580,352,895.06 - Step 5: Solve for x
x = 689,580,352,895.06/391,216.50 - Step 6: Final answer
x = 1,762,656.62
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These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.