Finding the Fourth Proportional to 1,580,821.46, 2,181,539.07 and 855,668.99
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Solution
The fourth proportional to 1,580,821.46, 2,181,539.07 and 855,668.99 is: 1,180,826.15
Step by Step Solution
- Step 1: Write the proportion equation
1,580,821.46 : 2,181,539.07 = 855,668.99 : x - Step 2: Convert to fraction form
1,580,821.46/2,181,539.07 = 855,668.99/x - Step 3: Cross multiply
1,580,821.46x = 2,181,539.07 × 855,668.99 - Step 4: Simplify right side
1,580,821.46x = 1,866,675,321,764.74 - Step 5: Solve for x
x = 1,866,675,321,764.74/1,580,821.46 - Step 6: Final answer
x = 1,180,826.15
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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.