Finding the Fourth Proportional to 485,399.59, 728,204.49 and 185,880.19
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Solution
The fourth proportional to 485,399.59, 728,204.49 and 185,880.19 is: 278,860.53
Step by Step Solution
- Step 1: Write the proportion equation
485,399.59 : 728,204.49 = 185,880.19 : x - Step 2: Convert to fraction form
485,399.59/728,204.49 = 185,880.19/x - Step 3: Cross multiply
485,399.59x = 728,204.49 × 185,880.19 - Step 4: Simplify right side
485,399.59x = 135,358,788,960.05 - Step 5: Solve for x
x = 135,358,788,960.05/485,399.59 - Step 6: Final answer
x = 278,860.53
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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.