Finding the Fourth Proportional to 1,275,566.18, 1,759,661.19 and 816,312.57
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Solution
The fourth proportional to 1,275,566.18, 1,759,661.19 and 816,312.57 is: 1,126,114.49
Step by Step Solution
- Step 1: Write the proportion equation
1,275,566.18 : 1,759,661.19 = 816,312.57 : x - Step 2: Convert to fraction form
1,275,566.18/1,759,661.19 = 816,312.57/x - Step 3: Cross multiply
1,275,566.18x = 1,759,661.19 × 816,312.57 - Step 4: Simplify right side
1,275,566.18x = 1,436,433,548,338.16 - Step 5: Solve for x
x = 1,436,433,548,338.16/1,275,566.18 - Step 6: Final answer
x = 1,126,114.49
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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.