Finding the Fourth Proportional to 509,224.05, 702,436.86 and 317,905.29
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Solution
The fourth proportional to 509,224.05, 702,436.86 and 317,905.29 is: 438,526.80
Step by Step Solution
- Step 1: Write the proportion equation
509,224.05 : 702,436.86 = 317,905.29 : x - Step 2: Convert to fraction form
509,224.05/702,436.86 = 317,905.29/x - Step 3: Cross multiply
509,224.05x = 702,436.86 × 317,905.29 - Step 4: Simplify right side
509,224.05x = 223,308,393,684.99 - Step 5: Solve for x
x = 223,308,393,684.99/509,224.05 - Step 6: Final answer
x = 438,526.80
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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.