Finding the Fourth Proportional to 788,517.20, 1,182,775.68 and 189,478.36
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Solution
The fourth proportional to 788,517.20, 1,182,775.68 and 189,478.36 is: 284,217.51
Step by Step Solution
- Step 1: Write the proportion equation
788,517.20 : 1,182,775.68 = 189,478.36 : x - Step 2: Convert to fraction form
788,517.20/1,182,775.68 = 189,478.36/x - Step 3: Cross multiply
788,517.20x = 1,182,775.68 × 189,478.36 - Step 4: Simplify right side
788,517.20x = 224,110,395,909.48 - Step 5: Solve for x
x = 224,110,395,909.48/788,517.20 - Step 6: Final answer
x = 284,217.51
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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.