Finding the Fourth Proportional to 1,507,186.29, 2,079,916.61 and 828,166.53
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Solution
The fourth proportional to 1,507,186.29, 2,079,916.61 and 828,166.53 is: 1,142,869.55
Step by Step Solution
- Step 1: Write the proportion equation
1,507,186.29 : 2,079,916.61 = 828,166.53 : x - Step 2: Convert to fraction form
1,507,186.29/2,079,916.61 = 828,166.53/x - Step 3: Cross multiply
1,507,186.29x = 2,079,916.61 × 828,166.53 - Step 4: Simplify right side
1,507,186.29x = 1,722,517,317,452.23 - Step 5: Solve for x
x = 1,722,517,317,452.23/1,507,186.29 - Step 6: Final answer
x = 1,142,869.55
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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.