Finding the Fourth Proportional to 777,455.82, 1,073,157.66 and 455,269.68
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Solution
The fourth proportional to 777,455.82, 1,073,157.66 and 455,269.68 is: 628,429.46
Step by Step Solution
- Step 1: Write the proportion equation
777,455.82 : 1,073,157.66 = 455,269.68 : x - Step 2: Convert to fraction form
777,455.82/1,073,157.66 = 455,269.68/x - Step 3: Cross multiply
777,455.82x = 1,073,157.66 × 455,269.68 - Step 4: Simplify right side
777,455.82x = 488,576,144,457.75 - Step 5: Solve for x
x = 488,576,144,457.75/777,455.82 - Step 6: Final answer
x = 628,429.46
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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.