Finding the Fourth Proportional to 673,860.53, 929,817.73 and 398,179.98
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Solution
The fourth proportional to 673,860.53, 929,817.73 and 398,179.98 is: 549,423.50
Step by Step Solution
- Step 1: Write the proportion equation
673,860.53 : 929,817.73 = 398,179.98 : x - Step 2: Convert to fraction form
673,860.53/929,817.73 = 398,179.98/x - Step 3: Cross multiply
673,860.53x = 929,817.73 × 398,179.98 - Step 4: Simplify right side
673,860.53x = 370,234,809,119.59 - Step 5: Solve for x
x = 370,234,809,119.59/673,860.53 - Step 6: Final answer
x = 549,423.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.