Finding the Fourth Proportional to 1,438,908.96, 2,158,576.68 and 479,051.07
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Solution
The fourth proportional to 1,438,908.96, 2,158,576.68 and 479,051.07 is: 718,647.60
Step by Step Solution
- Step 1: Write the proportion equation
1,438,908.96 : 2,158,576.68 = 479,051.07 : x - Step 2: Convert to fraction form
1,438,908.96/2,158,576.68 = 479,051.07/x - Step 3: Cross multiply
1,438,908.96x = 2,158,576.68 × 479,051.07 - Step 4: Simplify right side
1,438,908.96x = 1,034,068,468,231.05 - Step 5: Solve for x
x = 1,034,068,468,231.05/1,438,908.96 - Step 6: Final answer
x = 718,647.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.