Finding the Fourth Proportional to 509,020.81, 702,457.18 and 279,599.31
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Solution
The fourth proportional to 509,020.81, 702,457.18 and 279,599.31 is: 385,851.70
Step by Step Solution
- Step 1: Write the proportion equation
509,020.81 : 702,457.18 = 279,599.31 : x - Step 2: Convert to fraction form
509,020.81/702,457.18 = 279,599.31/x - Step 3: Cross multiply
509,020.81x = 702,457.18 × 279,599.31 - Step 4: Simplify right side
509,020.81x = 196,406,542,133.55 - Step 5: Solve for x
x = 196,406,542,133.55/509,020.81 - Step 6: Final answer
x = 385,851.70
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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.