Finding the Fourth Proportional to 539,817.74, 809,476.05 and 315,244.70
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Solution
The fourth proportional to 539,817.74, 809,476.05 and 315,244.70 is: 472,720.73
Step by Step Solution
- Step 1: Write the proportion equation
539,817.74 : 809,476.05 = 315,244.70 : x - Step 2: Convert to fraction form
539,817.74/809,476.05 = 315,244.70/x - Step 3: Cross multiply
539,817.74x = 809,476.05 × 315,244.70 - Step 4: Simplify right side
539,817.74x = 255,183,034,539.44 - Step 5: Solve for x
x = 255,183,034,539.44/539,817.74 - Step 6: Final answer
x = 472,720.73
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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.