Finding the Fourth Proportional to 808,135.20, 1,212,202.80 and 358,855.20
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Solution
The fourth proportional to 808,135.20, 1,212,202.80 and 358,855.20 is: 538,282.80
Step by Step Solution
- Step 1: Write the proportion equation
808,135.20 : 1,212,202.80 = 358,855.20 : x - Step 2: Convert to fraction form
808,135.20/1,212,202.80 = 358,855.20/x - Step 3: Cross multiply
808,135.20x = 1,212,202.80 × 358,855.20 - Step 4: Simplify right side
808,135.20x = 435,005,278,234.56 - Step 5: Solve for x
x = 435,005,278,234.56/808,135.20 - Step 6: Final answer
x = 538,282.80
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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.