Finding the Fourth Proportional to 1,282,387.74, 1,914,110.77 and 1,131,102.42
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Solution
The fourth proportional to 1,282,387.74, 1,914,110.77 and 1,131,102.42 is: 1,688,300.08
Step by Step Solution
- Step 1: Write the proportion equation
1,282,387.74 : 1,914,110.77 = 1,131,102.42 : x - Step 2: Convert to fraction form
1,282,387.74/1,914,110.77 = 1,131,102.42/x - Step 3: Cross multiply
1,282,387.74x = 1,914,110.77 × 1,131,102.42 - Step 4: Simplify right side
1,282,387.74x = 2,165,055,324,095.06 - Step 5: Solve for x
x = 2,165,055,324,095.06/1,282,387.74 - Step 6: Final answer
x = 1,688,300.08
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.