Finding the Fourth Proportional to 1,868,342.74, 2,578,320.85 and 1,052,556.20
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Solution
The fourth proportional to 1,868,342.74, 2,578,320.85 and 1,052,556.20 is: 1,452,531.99
Step by Step Solution
- Step 1: Write the proportion equation
1,868,342.74 : 2,578,320.85 = 1,052,556.20 : x - Step 2: Convert to fraction form
1,868,342.74/2,578,320.85 = 1,052,556.20/x - Step 3: Cross multiply
1,868,342.74x = 2,578,320.85 × 1,052,556.20 - Step 4: Simplify right side
1,868,342.74x = 2,713,827,596,256.77 - Step 5: Solve for x
x = 2,713,827,596,256.77/1,868,342.74 - Step 6: Final answer
x = 1,452,531.99
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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.