Finding the Fourth Proportional to 347,473.99, 479,266.91 and 318,885.97
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Solution
The fourth proportional to 347,473.99, 479,266.91 and 318,885.97 is: 439,835.78
Step by Step Solution
- Step 1: Write the proportion equation
347,473.99 : 479,266.91 = 318,885.97 : x - Step 2: Convert to fraction form
347,473.99/479,266.91 = 318,885.97/x - Step 3: Cross multiply
347,473.99x = 479,266.91 × 318,885.97 - Step 4: Simplify right side
347,473.99x = 152,831,494,468.39 - Step 5: Solve for x
x = 152,831,494,468.39/347,473.99 - Step 6: Final answer
x = 439,835.78
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1.5x scale
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.