Finding the Fourth Proportional to 1,994,358.96, 2,748,901.32 and 1,412,835.66
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Solution
The fourth proportional to 1,994,358.96, 2,748,901.32 and 1,412,835.66 is: 1,947,365.49
Step by Step Solution
- Step 1: Write the proportion equation
1,994,358.96 : 2,748,901.32 = 1,412,835.66 : x - Step 2: Convert to fraction form
1,994,358.96/2,748,901.32 = 1,412,835.66/x - Step 3: Cross multiply
1,994,358.96x = 2,748,901.32 × 1,412,835.66 - Step 4: Simplify right side
1,994,358.96x = 3,883,745,810,717.07 - Step 5: Solve for x
x = 3,883,745,810,717.07/1,994,358.96 - Step 6: Final answer
x = 1,947,365.49
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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.