Finding the Fourth Proportional to 1,995,974.41, 2,753,575.62 and 1,221,639.73
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Solution
The fourth proportional to 1,995,974.41, 2,753,575.62 and 1,221,639.73 is: 1,685,330.91
Step by Step Solution
- Step 1: Write the proportion equation
1,995,974.41 : 2,753,575.62 = 1,221,639.73 : x - Step 2: Convert to fraction form
1,995,974.41/2,753,575.62 = 1,221,639.73/x - Step 3: Cross multiply
1,995,974.41x = 2,753,575.62 × 1,221,639.73 - Step 4: Simplify right side
1,995,974.41x = 3,363,877,376,951.38 - Step 5: Solve for x
x = 3,363,877,376,951.38/1,995,974.41 - Step 6: Final answer
x = 1,685,330.91
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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.