Finding the Fourth Proportional to 931,837.13, 1,397,786.67 and 257,862.05
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Solution
The fourth proportional to 931,837.13, 1,397,786.67 and 257,862.05 is: 386,801.64
Step by Step Solution
- Step 1: Write the proportion equation
931,837.13 : 1,397,786.67 = 257,862.05 : x - Step 2: Convert to fraction form
931,837.13/1,397,786.67 = 257,862.05/x - Step 3: Cross multiply
931,837.13x = 1,397,786.67 × 257,862.05 - Step 4: Simplify right side
931,837.13x = 360,436,129,199.94 - Step 5: Solve for x
x = 360,436,129,199.94/931,837.13 - Step 6: Final answer
x = 386,801.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.