Finding the Fourth Proportional to 414,605.14, 621,911.19 and 115,109.07
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Solution
The fourth proportional to 414,605.14, 621,911.19 and 115,109.07 is: 172,664.58
Step by Step Solution
- Step 1: Write the proportion equation
414,605.14 : 621,911.19 = 115,109.07 : x - Step 2: Convert to fraction form
414,605.14/621,911.19 = 115,109.07/x - Step 3: Cross multiply
414,605.14x = 621,911.19 × 115,109.07 - Step 4: Simplify right side
414,605.14x = 71,587,620,258.27 - Step 5: Solve for x
x = 71,587,620,258.27/414,605.14 - Step 6: Final answer
x = 172,664.58
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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.