Finding the Fourth Proportional to 1,543,099.52, 2,129,565.12 and 864,030.08
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Solution
The fourth proportional to 1,543,099.52, 2,129,565.12 and 864,030.08 is: 1,192,410.66
Step by Step Solution
- Step 1: Write the proportion equation
1,543,099.52 : 2,129,565.12 = 864,030.08 : x - Step 2: Convert to fraction form
1,543,099.52/2,129,565.12 = 864,030.08/x - Step 3: Cross multiply
1,543,099.52x = 2,129,565.12 × 864,030.08 - Step 4: Simplify right side
1,543,099.52x = 1,840,008,320,998.81 - Step 5: Solve for x
x = 1,840,008,320,998.81/1,543,099.52 - Step 6: Final answer
x = 1,192,410.66
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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.