Finding the Fourth Proportional to 1,010,427.50, 1,394,390.07 and 557,718.62
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Solution
The fourth proportional to 1,010,427.50, 1,394,390.07 and 557,718.62 is: 769,651.76
Step by Step Solution
- Step 1: Write the proportion equation
1,010,427.50 : 1,394,390.07 = 557,718.62 : x - Step 2: Convert to fraction form
1,010,427.50/1,394,390.07 = 557,718.62/x - Step 3: Cross multiply
1,010,427.50x = 1,394,390.07 × 557,718.62 - Step 4: Simplify right side
1,010,427.50x = 777,677,305,582.10 - Step 5: Solve for x
x = 777,677,305,582.10/1,010,427.50 - Step 6: Final answer
x = 769,651.76
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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.