Finding the Fourth Proportional to 509,539.14, 702,873.18 and 315,858.42
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Solution
The fourth proportional to 509,539.14, 702,873.18 and 315,858.42 is: 435,704.33
Step by Step Solution
- Step 1: Write the proportion equation
509,539.14 : 702,873.18 = 315,858.42 : x - Step 2: Convert to fraction form
509,539.14/702,873.18 = 315,858.42/x - Step 3: Cross multiply
509,539.14x = 702,873.18 × 315,858.42 - Step 4: Simplify right side
509,539.14x = 222,008,412,095.18 - Step 5: Solve for x
x = 222,008,412,095.18/509,539.14 - Step 6: Final answer
x = 435,704.33
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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.