Finding the Fourth Proportional to 1,109,758.54, 1,531,467.66 and 770,423.62
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Solution
The fourth proportional to 1,109,758.54, 1,531,467.66 and 770,423.62 is: 1,063,185.20
Step by Step Solution
- Step 1: Write the proportion equation
1,109,758.54 : 1,531,467.66 = 770,423.62 : x - Step 2: Convert to fraction form
1,109,758.54/1,531,467.66 = 770,423.62/x - Step 3: Cross multiply
1,109,758.54x = 1,531,467.66 × 770,423.62 - Step 4: Simplify right side
1,109,758.54x = 1,179,878,858,530.13 - Step 5: Solve for x
x = 1,179,878,858,530.13/1,109,758.54 - Step 6: Final answer
x = 1,063,185.20
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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.