Finding the Fourth Proportional to 899,186.01, 1,240,862.21 and 491,279.09
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Solution
The fourth proportional to 899,186.01, 1,240,862.21 and 491,279.09 is: 677,957.23
Step by Step Solution
- Step 1: Write the proportion equation
899,186.01 : 1,240,862.21 = 491,279.09 : x - Step 2: Convert to fraction form
899,186.01/1,240,862.21 = 491,279.09/x - Step 3: Cross multiply
899,186.01x = 1,240,862.21 × 491,279.09 - Step 4: Simplify right side
899,186.01x = 609,609,657,344.19 - Step 5: Solve for x
x = 609,609,657,344.19/899,186.01 - Step 6: Final answer
x = 677,957.23
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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.