Finding the Fourth Proportional to 2,117,494.45, 2,921,905.13 and 1,199,526.99
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Solution
The fourth proportional to 2,117,494.45, 2,921,905.13 and 1,199,526.99 is: 1,655,212.87
Step by Step Solution
- Step 1: Write the proportion equation
2,117,494.45 : 2,921,905.13 = 1,199,526.99 : x - Step 2: Convert to fraction form
2,117,494.45/2,921,905.13 = 1,199,526.99/x - Step 3: Cross multiply
2,117,494.45x = 2,921,905.13 × 1,199,526.99 - Step 4: Simplify right side
2,117,494.45x = 3,504,904,065,654.46 - Step 5: Solve for x
x = 3,504,904,065,654.46/2,117,494.45 - Step 6: Final answer
x = 1,655,212.87
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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.