Finding the Fourth Proportional to 685,418.10, 1,028,373.03 and 306,306.96
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Solution
The fourth proportional to 685,418.10, 1,028,373.03 and 306,306.96 is: 459,570.32
Step by Step Solution
- Step 1: Write the proportion equation
685,418.10 : 1,028,373.03 = 306,306.96 : x - Step 2: Convert to fraction form
685,418.10/1,028,373.03 = 306,306.96/x - Step 3: Cross multiply
685,418.10x = 1,028,373.03 × 306,306.96 - Step 4: Simplify right side
685,418.10x = 314,997,816,565.29 - Step 5: Solve for x
x = 314,997,816,565.29/685,418.10 - Step 6: Final answer
x = 459,570.32
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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.