Finding the Fourth Proportional to 1,207,604.58, 1,666,651.98 and 779,131.18
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Solution
The fourth proportional to 1,207,604.58, 1,666,651.98 and 779,131.18 is: 1,075,302.75
Step by Step Solution
- Step 1: Write the proportion equation
1,207,604.58 : 1,666,651.98 = 779,131.18 : x - Step 2: Convert to fraction form
1,207,604.58/1,666,651.98 = 779,131.18/x - Step 3: Cross multiply
1,207,604.58x = 1,666,651.98 × 779,131.18 - Step 4: Simplify right side
1,207,604.58x = 1,298,540,523,826.74 - Step 5: Solve for x
x = 1,298,540,523,826.74/1,207,604.58 - Step 6: Final answer
x = 1,075,302.75
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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.