Finding the Fourth Proportional to 1,399,338.24, 1,931,064.48 and 779,137.44
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Solution
The fourth proportional to 1,399,338.24, 1,931,064.48 and 779,137.44 is: 1,075,197.26
Step by Step Solution
- Step 1: Write the proportion equation
1,399,338.24 : 1,931,064.48 = 779,137.44 : x - Step 2: Convert to fraction form
1,399,338.24/1,931,064.48 = 779,137.44/x - Step 3: Cross multiply
1,399,338.24x = 1,931,064.48 × 779,137.44 - Step 4: Simplify right side
1,399,338.24x = 1,504,564,635,422.13 - Step 5: Solve for x
x = 1,504,564,635,422.13/1,399,338.24 - Step 6: Final answer
x = 1,075,197.26
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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.