Finding the Fourth Proportional to 1,531,284.21, 2,113,172.19 and 852,381.09
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Solution
The fourth proportional to 1,531,284.21, 2,113,172.19 and 852,381.09 is: 1,176,285.89
Step by Step Solution
- Step 1: Write the proportion equation
1,531,284.21 : 2,113,172.19 = 852,381.09 : x - Step 2: Convert to fraction form
1,531,284.21/2,113,172.19 = 852,381.09/x - Step 3: Cross multiply
1,531,284.21x = 2,113,172.19 × 852,381.09 - Step 4: Simplify right side
1,531,284.21x = 1,801,228,014,669.89 - Step 5: Solve for x
x = 1,801,228,014,669.89/1,531,284.21 - Step 6: Final answer
x = 1,176,285.89
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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.