Finding the Fourth Proportional to 815,701.29, 1,223,676.30 and 416,124.09
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Solution
The fourth proportional to 815,701.29, 1,223,676.30 and 416,124.09 is: 624,249.58
Step by Step Solution
- Step 1: Write the proportion equation
815,701.29 : 1,223,676.30 = 416,124.09 : x - Step 2: Convert to fraction form
815,701.29/1,223,676.30 = 416,124.09/x - Step 3: Cross multiply
815,701.29x = 1,223,676.30 × 416,124.09 - Step 4: Simplify right side
815,701.29x = 509,201,186,792.07 - Step 5: Solve for x
x = 509,201,186,792.07/815,701.29 - Step 6: Final answer
x = 624,249.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.