Finding the Fourth Proportional to 1,581,345.42, 2,182,247.44 and 856,177.92
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Solution
The fourth proportional to 1,581,345.42, 2,182,247.44 and 856,177.92 is: 1,181,520.53
Step by Step Solution
- Step 1: Write the proportion equation
1,581,345.42 : 2,182,247.44 = 856,177.92 : x - Step 2: Convert to fraction form
1,581,345.42/2,182,247.44 = 856,177.92/x - Step 3: Cross multiply
1,581,345.42x = 2,182,247.44 × 856,177.92 - Step 4: Simplify right side
1,581,345.42x = 1,868,392,074,104.53 - Step 5: Solve for x
x = 1,868,392,074,104.53/1,581,345.42 - Step 6: Final answer
x = 1,181,520.53
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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.