Finding the Fourth Proportional to 822,900.40, 1,135,646.69 and 460,302.63
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Solution
The fourth proportional to 822,900.40, 1,135,646.69 and 460,302.63 is: 635,242.33
Step by Step Solution
- Step 1: Write the proportion equation
822,900.40 : 1,135,646.69 = 460,302.63 : x - Step 2: Convert to fraction form
822,900.40/1,135,646.69 = 460,302.63/x - Step 3: Cross multiply
822,900.40x = 1,135,646.69 × 460,302.63 - Step 4: Simplify right side
822,900.40x = 522,741,164,631.90 - Step 5: Solve for x
x = 522,741,164,631.90/822,900.40 - Step 6: Final answer
x = 635,242.33
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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.