Finding the Fourth Proportional to 479,486.79, 719,551.21 and 199,004.31
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Solution
The fourth proportional to 479,486.79, 719,551.21 and 199,004.31 is: 298,639.70
Step by Step Solution
- Step 1: Write the proportion equation
479,486.79 : 719,551.21 = 199,004.31 : x - Step 2: Convert to fraction form
479,486.79/719,551.21 = 199,004.31/x - Step 3: Cross multiply
479,486.79x = 719,551.21 × 199,004.31 - Step 4: Simplify right side
479,486.79x = 143,193,788,457.96 - Step 5: Solve for x
x = 143,193,788,457.96/479,486.79 - Step 6: Final answer
x = 298,639.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.