Finding the Fourth Proportional to 509,804.14, 703,239.06 and 316,123.42
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Solution
The fourth proportional to 509,804.14, 703,239.06 and 316,123.42 is: 436,070.09
Step by Step Solution
- Step 1: Write the proportion equation
509,804.14 : 703,239.06 = 316,123.42 : x - Step 2: Convert to fraction form
509,804.14/703,239.06 = 316,123.42/x - Step 3: Cross multiply
509,804.14x = 703,239.06 × 316,123.42 - Step 4: Simplify right side
509,804.14x = 222,310,336,724.79 - Step 5: Solve for x
x = 222,310,336,724.79/509,804.14 - Step 6: Final answer
x = 436,070.09
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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.