Finding the Fourth Proportional to 685,720.26, 1,028,648.10 and 236,381.94
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Solution
The fourth proportional to 685,720.26, 1,028,648.10 and 236,381.94 is: 354,596.25
Step by Step Solution
- Step 1: Write the proportion equation
685,720.26 : 1,028,648.10 = 236,381.94 : x - Step 2: Convert to fraction form
685,720.26/1,028,648.10 = 236,381.94/x - Step 3: Cross multiply
685,720.26x = 1,028,648.10 × 236,381.94 - Step 4: Simplify right side
685,720.26x = 243,153,833,455.31 - Step 5: Solve for x
x = 243,153,833,455.31/685,720.26 - Step 6: Final answer
x = 354,596.25
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.