Finding the Fourth Proportional to 485,971.99, 728,874.89 and 130,902.97
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Solution
The fourth proportional to 485,971.99, 728,874.89 and 130,902.97 is: 196,332.07
Step by Step Solution
- Step 1: Write the proportion equation
485,971.99 : 728,874.89 = 130,902.97 : x - Step 2: Convert to fraction form
485,971.99/728,874.89 = 130,902.97/x - Step 3: Cross multiply
485,971.99x = 728,874.89 × 130,902.97 - Step 4: Simplify right side
485,971.99x = 95,411,884,542.31 - Step 5: Solve for x
x = 95,411,884,542.31/485,971.99 - Step 6: Final answer
x = 196,332.07
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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.