Finding the Fourth Proportional to 539,517.80, 809,743.20 and 207,327.08
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Solution
The fourth proportional to 539,517.80, 809,743.20 and 207,327.08 is: 311,169.89
Step by Step Solution
- Step 1: Write the proportion equation
539,517.80 : 809,743.20 = 207,327.08 : x - Step 2: Convert to fraction form
539,517.80/809,743.20 = 207,327.08/x - Step 3: Cross multiply
539,517.80x = 809,743.20 × 207,327.08 - Step 4: Simplify right side
539,517.80x = 167,881,693,205.86 - Step 5: Solve for x
x = 167,881,693,205.86/539,517.80 - Step 6: Final answer
x = 311,169.89
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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.