Finding the Fourth Proportional to 2,172,972.96, 2,998,659.96 and 1,206,114.84
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Solution
The fourth proportional to 2,172,972.96, 2,998,659.96 and 1,206,114.84 is: 1,664,414.76
Step by Step Solution
- Step 1: Write the proportion equation
2,172,972.96 : 2,998,659.96 = 1,206,114.84 : x - Step 2: Convert to fraction form
2,172,972.96/2,998,659.96 = 1,206,114.84/x - Step 3: Cross multiply
2,172,972.96x = 2,998,659.96 × 1,206,114.84 - Step 4: Simplify right side
2,172,972.96x = 3,616,728,277,869.81 - Step 5: Solve for x
x = 3,616,728,277,869.81/2,172,972.96 - Step 6: Final answer
x = 1,664,414.76
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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.