Finding the Fourth Proportional to 509,349.05, 702,608.96 and 318,030.29
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Solution
The fourth proportional to 509,349.05, 702,608.96 and 318,030.29 is: 438,699.02
Step by Step Solution
- Step 1: Write the proportion equation
509,349.05 : 702,608.96 = 318,030.29 : x - Step 2: Convert to fraction form
509,349.05/702,608.96 = 318,030.29/x - Step 3: Cross multiply
509,349.05x = 702,608.96 × 318,030.29 - Step 4: Simplify right side
509,349.05x = 223,450,926,202.20 - Step 5: Solve for x
x = 223,450,926,202.20/509,349.05 - Step 6: Final answer
x = 438,699.02
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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.