Finding the Fourth Proportional to 611,141.18, 843,362.12 and 339,193.12
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Solution
The fourth proportional to 611,141.18, 843,362.12 and 339,193.12 is: 468,079.45
Step by Step Solution
- Step 1: Write the proportion equation
611,141.18 : 843,362.12 = 339,193.12 : x - Step 2: Convert to fraction form
611,141.18/843,362.12 = 339,193.12/x - Step 3: Cross multiply
611,141.18x = 843,362.12 × 339,193.12 - Step 4: Simplify right side
611,141.18x = 286,062,628,772.61 - Step 5: Solve for x
x = 286,062,628,772.61/611,141.18 - Step 6: Final answer
x = 468,079.45
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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.