Finding the Fourth Proportional to 693,158.68, 1,039,837.18 and 213,427.08
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Solution
The fourth proportional to 693,158.68, 1,039,837.18 and 213,427.08 is: 320,171.15
Step by Step Solution
- Step 1: Write the proportion equation
693,158.68 : 1,039,837.18 = 213,427.08 : x - Step 2: Convert to fraction form
693,158.68/1,039,837.18 = 213,427.08/x - Step 3: Cross multiply
693,158.68x = 1,039,837.18 × 213,427.08 - Step 4: Simplify right side
693,158.68x = 221,929,413,002.83 - Step 5: Solve for x
x = 221,929,413,002.83/693,158.68 - Step 6: Final answer
x = 320,171.15
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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.