Finding the Fourth Proportional to 1,821,132.09, 2,513,146.86 and 1,005,318.27
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Solution
The fourth proportional to 1,821,132.09, 2,513,146.86 and 1,005,318.27 is: 1,387,330.70
Step by Step Solution
- Step 1: Write the proportion equation
1,821,132.09 : 2,513,146.86 = 1,005,318.27 : x - Step 2: Convert to fraction form
1,821,132.09/2,513,146.86 = 1,005,318.27/x - Step 3: Cross multiply
1,821,132.09x = 2,513,146.86 × 1,005,318.27 - Step 4: Simplify right side
1,821,132.09x = 2,526,512,453,551.13 - Step 5: Solve for x
x = 2,526,512,453,551.13/1,821,132.09 - Step 6: Final answer
x = 1,387,330.70
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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.