Finding the Fourth Proportional to 611,557.97, 843,961.26 and 339,651.23
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Solution
The fourth proportional to 611,557.97, 843,961.26 and 339,651.23 is: 468,724.95
Step by Step Solution
- Step 1: Write the proportion equation
611,557.97 : 843,961.26 = 339,651.23 : x - Step 2: Convert to fraction form
611,557.97/843,961.26 = 339,651.23/x - Step 3: Cross multiply
611,557.97x = 843,961.26 × 339,651.23 - Step 4: Simplify right side
611,557.97x = 286,652,474,113.29 - Step 5: Solve for x
x = 286,652,474,113.29/611,557.97 - Step 6: Final answer
x = 468,724.95
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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.