Finding the Fourth Proportional to 509,178.66, 702,678.92 and 279,750.79
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Solution
The fourth proportional to 509,178.66, 702,678.92 and 279,750.79 is: 386,062.89
Step by Step Solution
- Step 1: Write the proportion equation
509,178.66 : 702,678.92 = 279,750.79 : x - Step 2: Convert to fraction form
509,178.66/702,678.92 = 279,750.79/x - Step 3: Cross multiply
509,178.66x = 702,678.92 × 279,750.79 - Step 4: Simplify right side
509,178.66x = 196,574,982,465.94 - Step 5: Solve for x
x = 196,574,982,465.94/509,178.66 - Step 6: Final answer
x = 386,062.89
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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.