Finding the Fourth Proportional to 413,502.21, 620,377.83 and 129,181.28
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Solution
The fourth proportional to 413,502.21, 620,377.83 and 129,181.28 is: 193,810.81
Step by Step Solution
- Step 1: Write the proportion equation
413,502.21 : 620,377.83 = 129,181.28 : x - Step 2: Convert to fraction form
413,502.21/620,377.83 = 129,181.28/x - Step 3: Cross multiply
413,502.21x = 620,377.83 × 129,181.28 - Step 4: Simplify right side
413,502.21x = 80,141,199,061.13 - Step 5: Solve for x
x = 80,141,199,061.13/413,502.21 - Step 6: Final answer
x = 193,810.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.