Finding the Fourth Proportional to 2,557,468.40, 3,529,055.12 and 1,411,474.76
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Solution
The fourth proportional to 2,557,468.40, 3,529,055.12 and 1,411,474.76 is: 1,947,696.49
Step by Step Solution
- Step 1: Write the proportion equation
2,557,468.40 : 3,529,055.12 = 1,411,474.76 : x - Step 2: Convert to fraction form
2,557,468.40/3,529,055.12 = 1,411,474.76/x - Step 3: Cross multiply
2,557,468.40x = 3,529,055.12 × 1,411,474.76 - Step 4: Simplify right side
2,557,468.40x = 4,981,172,228,528.77 - Step 5: Solve for x
x = 4,981,172,228,528.77/2,557,468.40 - Step 6: Final answer
x = 1,947,696.49
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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.