Finding the Fourth Proportional to 820,463.34, 1,132,192.17 and 457,858.74
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Solution
The fourth proportional to 820,463.34, 1,132,192.17 and 457,858.74 is: 631,818.70
Step by Step Solution
- Step 1: Write the proportion equation
820,463.34 : 1,132,192.17 = 457,858.74 : x - Step 2: Convert to fraction form
820,463.34/1,132,192.17 = 457,858.74/x - Step 3: Cross multiply
820,463.34x = 1,132,192.17 × 457,858.74 - Step 4: Simplify right side
820,463.34x = 518,384,080,394.07 - Step 5: Solve for x
x = 518,384,080,394.07/820,463.34 - Step 6: Final answer
x = 631,818.70
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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.