Finding the Fourth Proportional to 405,752.96, 608,409.12 and 121,404.08
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Solution
The fourth proportional to 405,752.96, 608,409.12 and 121,404.08 is: 182,040.20
Step by Step Solution
- Step 1: Write the proportion equation
405,752.96 : 608,409.12 = 121,404.08 : x - Step 2: Convert to fraction form
405,752.96/608,409.12 = 121,404.08/x - Step 3: Cross multiply
405,752.96x = 608,409.12 × 121,404.08 - Step 4: Simplify right side
405,752.96x = 73,863,349,477.21 - Step 5: Solve for x
x = 73,863,349,477.21/405,752.96 - Step 6: Final answer
x = 182,040.20
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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.