Finding the Fourth Proportional to 559,770.19, 771,872.39 and 378,166.79
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Solution
The fourth proportional to 559,770.19, 771,872.39 and 378,166.79 is: 521,457.76
Step by Step Solution
- Step 1: Write the proportion equation
559,770.19 : 771,872.39 = 378,166.79 : x - Step 2: Convert to fraction form
559,770.19/771,872.39 = 378,166.79/x - Step 3: Cross multiply
559,770.19x = 771,872.39 × 378,166.79 - Step 4: Simplify right side
559,770.19x = 291,896,504,015.93 - Step 5: Solve for x
x = 291,896,504,015.93/559,770.19 - Step 6: Final answer
x = 521,457.76
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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.