Finding the Fourth Proportional to 591,407.87, 816,141.96 and 319,475.68
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Solution
The fourth proportional to 591,407.87, 816,141.96 and 319,475.68 is: 440,875.95
Step by Step Solution
- Step 1: Write the proportion equation
591,407.87 : 816,141.96 = 319,475.68 : x - Step 2: Convert to fraction form
591,407.87/816,141.96 = 319,475.68/x - Step 3: Cross multiply
591,407.87x = 816,141.96 × 319,475.68 - Step 4: Simplify right side
591,407.87x = 260,737,505,607.18 - Step 5: Solve for x
x = 260,737,505,607.18/591,407.87 - Step 6: Final answer
x = 440,875.95
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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.