Finding the Fourth Proportional to 1,868,343.12, 2,578,321.36 and 1,052,556.58
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Solution
The fourth proportional to 1,868,343.12, 2,578,321.36 and 1,052,556.58 is: 1,452,532.51
Step by Step Solution
- Step 1: Write the proportion equation
1,868,343.12 : 2,578,321.36 = 1,052,556.58 : x - Step 2: Convert to fraction form
1,868,343.12/2,578,321.36 = 1,052,556.58/x - Step 3: Cross multiply
1,868,343.12x = 2,578,321.36 × 1,052,556.58 - Step 4: Simplify right side
1,868,343.12x = 2,713,829,112,822.55 - Step 5: Solve for x
x = 2,713,829,112,822.55/1,868,343.12 - Step 6: Final answer
x = 1,452,532.51
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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.