Finding the Fourth Proportional to 1,581,687.32, 2,182,717.62 and 856,518.44
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Solution
The fourth proportional to 1,581,687.32, 2,182,717.62 and 856,518.44 is: 1,181,989.55
Step by Step Solution
- Step 1: Write the proportion equation
1,581,687.32 : 2,182,717.62 = 856,518.44 : x - Step 2: Convert to fraction form
1,581,687.32/2,182,717.62 = 856,518.44/x - Step 3: Cross multiply
1,581,687.32x = 2,182,717.62 × 856,518.44 - Step 4: Simplify right side
1,581,687.32x = 1,869,537,879,929.33 - Step 5: Solve for x
x = 1,869,537,879,929.33/1,581,687.32 - Step 6: Final answer
x = 1,181,989.55
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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.