Finding the Fourth Proportional to 557,957.21, 770,122.16 and 343,289.49
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Solution
The fourth proportional to 557,957.21, 770,122.16 and 343,289.49 is: 473,826.38
Step by Step Solution
- Step 1: Write the proportion equation
557,957.21 : 770,122.16 = 343,289.49 : x - Step 2: Convert to fraction form
557,957.21/770,122.16 = 343,289.49/x - Step 3: Cross multiply
557,957.21x = 770,122.16 × 343,289.49 - Step 4: Simplify right side
557,957.21x = 264,374,841,827.65 - Step 5: Solve for x
x = 264,374,841,827.65/557,957.21 - Step 6: Final answer
x = 473,826.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.