Finding the Fourth Proportional to 1,868,428.43, 2,578,419.49 and 1,052,894.08
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Solution
The fourth proportional to 1,868,428.43, 2,578,419.49 and 1,052,894.08 is: 1,452,987.21
Step by Step Solution
- Step 1: Write the proportion equation
1,868,428.43 : 2,578,419.49 = 1,052,894.08 : x - Step 2: Convert to fraction form
1,868,428.43/2,578,419.49 = 1,052,894.08/x - Step 3: Cross multiply
1,868,428.43x = 2,578,419.49 × 1,052,894.08 - Step 4: Simplify right side
1,868,428.43x = 2,714,802,616,777.62 - Step 5: Solve for x
x = 2,714,802,616,777.62/1,868,428.43 - Step 6: Final answer
x = 1,452,987.21
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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.