Finding the Fourth Proportional to 819,045.68, 1,228,630.62 and 279,134.10
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Solution
The fourth proportional to 819,045.68, 1,228,630.62 and 279,134.10 is: 418,722.32
Step by Step Solution
- Step 1: Write the proportion equation
819,045.68 : 1,228,630.62 = 279,134.10 : x - Step 2: Convert to fraction form
819,045.68/1,228,630.62 = 279,134.10/x - Step 3: Cross multiply
819,045.68x = 1,228,630.62 × 279,134.10 - Step 4: Simplify right side
819,045.68x = 342,952,702,346.14 - Step 5: Solve for x
x = 342,952,702,346.14/819,045.68 - Step 6: Final answer
x = 418,722.32
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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.