Finding the Fourth Proportional to 1,207,645.60, 1,809,394.80 and 786,704.80
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Solution
The fourth proportional to 1,207,645.60, 1,809,394.80 and 786,704.80 is: 1,178,706.38
Step by Step Solution
- Step 1: Write the proportion equation
1,207,645.60 : 1,809,394.80 = 786,704.80 : x - Step 2: Convert to fraction form
1,207,645.60/1,809,394.80 = 786,704.80/x - Step 3: Cross multiply
1,207,645.60x = 1,809,394.80 × 786,704.80 - Step 4: Simplify right side
1,207,645.60x = 1,423,459,574,255.04 - Step 5: Solve for x
x = 1,423,459,574,255.04/1,207,645.60 - Step 6: Final answer
x = 1,178,706.38
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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.