Finding the Fourth Proportional to 661,617.44, 913,012.56 and 375,163.68
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Solution
The fourth proportional to 661,617.44, 913,012.56 and 375,163.68 is: 517,714.82
Step by Step Solution
- Step 1: Write the proportion equation
661,617.44 : 913,012.56 = 375,163.68 : x - Step 2: Convert to fraction form
661,617.44/913,012.56 = 375,163.68/x - Step 3: Cross multiply
661,617.44x = 913,012.56 × 375,163.68 - Step 4: Simplify right side
661,617.44x = 342,529,151,895.82 - Step 5: Solve for x
x = 342,529,151,895.82/661,617.44 - Step 6: Final answer
x = 517,714.82
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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.