Finding the Fourth Proportional to 509,136.94, 702,609.44 and 279,709.08
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Solution
The fourth proportional to 509,136.94, 702,609.44 and 279,709.08 is: 385,998.79
Step by Step Solution
- Step 1: Write the proportion equation
509,136.94 : 702,609.44 = 279,709.08 : x - Step 2: Convert to fraction form
509,136.94/702,609.44 = 279,709.08/x - Step 3: Cross multiply
509,136.94x = 702,609.44 × 279,709.08 - Step 4: Simplify right side
509,136.94x = 196,526,238,663.17 - Step 5: Solve for x
x = 196,526,238,663.17/509,136.94 - Step 6: Final answer
x = 385,998.79
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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.