Finding the Fourth Proportional to 1,178,669.62, 1,626,137.41 and 771,004.18
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Solution
The fourth proportional to 1,178,669.62, 1,626,137.41 and 771,004.18 is: 1,063,706.67
Step by Step Solution
- Step 1: Write the proportion equation
1,178,669.62 : 1,626,137.41 = 771,004.18 : x - Step 2: Convert to fraction form
1,178,669.62/1,626,137.41 = 771,004.18/x - Step 3: Cross multiply
1,178,669.62x = 1,626,137.41 × 771,004.18 - Step 4: Simplify right side
1,178,669.62x = 1,253,758,740,364.37 - Step 5: Solve for x
x = 1,253,758,740,364.37/1,178,669.62 - Step 6: Final answer
x = 1,063,706.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.