Finding the Fourth Proportional to 485,472.53, 728,207.74 and 130,486.54
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Solution
The fourth proportional to 485,472.53, 728,207.74 and 130,486.54 is: 195,729.53
Step by Step Solution
- Step 1: Write the proportion equation
485,472.53 : 728,207.74 = 130,486.54 : x - Step 2: Convert to fraction form
485,472.53/728,207.74 = 130,486.54/x - Step 3: Cross multiply
485,472.53x = 728,207.74 × 130,486.54 - Step 4: Simplify right side
485,472.53x = 95,021,307,741.39 - Step 5: Solve for x
x = 95,021,307,741.39/485,472.53 - Step 6: Final answer
x = 195,729.53
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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.