Finding the Fourth Proportional to 1,173,073.80, 1,618,860.66 and 636,529.80
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Solution
The fourth proportional to 1,173,073.80, 1,618,860.66 and 636,529.80 is: 878,421.33
Step by Step Solution
- Step 1: Write the proportion equation
1,173,073.80 : 1,618,860.66 = 636,529.80 : x - Step 2: Convert to fraction form
1,173,073.80/1,618,860.66 = 636,529.80/x - Step 3: Cross multiply
1,173,073.80x = 1,618,860.66 × 636,529.80 - Step 4: Simplify right side
1,173,073.80x = 1,030,453,052,137.67 - Step 5: Solve for x
x = 1,030,453,052,137.67/1,173,073.80 - Step 6: Final answer
x = 878,421.33
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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.