Finding the Fourth Proportional to 931,090.36, 1,396,607.88 and 257,212.18
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Solution
The fourth proportional to 931,090.36, 1,396,607.88 and 257,212.18 is: 385,810.63
Step by Step Solution
- Step 1: Write the proportion equation
931,090.36 : 1,396,607.88 = 257,212.18 : x - Step 2: Convert to fraction form
931,090.36/1,396,607.88 = 257,212.18/x - Step 3: Cross multiply
931,090.36x = 1,396,607.88 × 257,212.18 - Step 4: Simplify right side
931,090.36x = 359,224,557,419.98 - Step 5: Solve for x
x = 359,224,557,419.98/931,090.36 - Step 6: Final answer
x = 385,810.63
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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.