Finding the Fourth Proportional to 741,302.76, 1,022,990.66 and 414,612.20
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Solution
The fourth proportional to 741,302.76, 1,022,990.66 and 414,612.20 is: 572,160.84
Step by Step Solution
- Step 1: Write the proportion equation
741,302.76 : 1,022,990.66 = 414,612.20 : x - Step 2: Convert to fraction form
741,302.76/1,022,990.66 = 414,612.20/x - Step 3: Cross multiply
741,302.76x = 1,022,990.66 × 414,612.20 - Step 4: Simplify right side
741,302.76x = 424,144,408,122.05 - Step 5: Solve for x
x = 424,144,408,122.05/741,302.76 - Step 6: Final answer
x = 572,160.84
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1.5x scale
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.