Finding the Fourth Proportional to 1,688,491.18, 2,330,121.60 and 914,130.18
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Solution
The fourth proportional to 1,688,491.18, 2,330,121.60 and 914,130.18 is: 1,261,501.69
Step by Step Solution
- Step 1: Write the proportion equation
1,688,491.18 : 2,330,121.60 = 914,130.18 : x - Step 2: Convert to fraction form
1,688,491.18/2,330,121.60 = 914,130.18/x - Step 3: Cross multiply
1,688,491.18x = 2,330,121.60 × 914,130.18 - Step 4: Simplify right side
1,688,491.18x = 2,130,034,477,629.89 - Step 5: Solve for x
x = 2,130,034,477,629.89/1,688,491.18 - Step 6: Final answer
x = 1,261,501.69
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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.