Finding the Fourth Proportional to 1,921,115.16, 2,882,170.47 and 1,021,816.68
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Solution
The fourth proportional to 1,921,115.16, 2,882,170.47 and 1,021,816.68 is: 1,532,989.76
Step by Step Solution
- Step 1: Write the proportion equation
1,921,115.16 : 2,882,170.47 = 1,021,816.68 : x - Step 2: Convert to fraction form
1,921,115.16/2,882,170.47 = 1,021,816.68/x - Step 3: Cross multiply
1,921,115.16x = 2,882,170.47 × 1,021,816.68 - Step 4: Simplify right side
1,921,115.16x = 2,945,049,860,849.44 - Step 5: Solve for x
x = 2,945,049,860,849.44/1,921,115.16 - Step 6: Final answer
x = 1,532,989.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.