Finding the Fourth Proportional to 509,236.11, 702,757.64 and 279,807.75
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Solution
The fourth proportional to 509,236.11, 702,757.64 and 279,807.75 is: 386,141.18
Step by Step Solution
- Step 1: Write the proportion equation
509,236.11 : 702,757.64 = 279,807.75 : x - Step 2: Convert to fraction form
509,236.11/702,757.64 = 279,807.75/x - Step 3: Cross multiply
509,236.11x = 702,757.64 × 279,807.75 - Step 4: Simplify right side
509,236.11x = 196,637,032,644.67 - Step 5: Solve for x
x = 196,637,032,644.67/509,236.11 - Step 6: Final answer
x = 386,141.18
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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.