Finding the Fourth Proportional to 403,770.80, 605,656.20 and 340,785.20
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Solution
The fourth proportional to 403,770.80, 605,656.20 and 340,785.20 is: 511,177.80
Step by Step Solution
- Step 1: Write the proportion equation
403,770.80 : 605,656.20 = 340,785.20 : x - Step 2: Convert to fraction form
403,770.80/605,656.20 = 340,785.20/x - Step 3: Cross multiply
403,770.80x = 605,656.20 × 340,785.20 - Step 4: Simplify right side
403,770.80x = 206,398,669,248.24 - Step 5: Solve for x
x = 206,398,669,248.24/403,770.80 - Step 6: Final answer
x = 511,177.80
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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.