Finding the Fourth Proportional to 438,014.66, 603,912.55 and 365,521.99
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Solution
The fourth proportional to 438,014.66, 603,912.55 and 365,521.99 is: 503,963.30
Step by Step Solution
- Step 1: Write the proportion equation
438,014.66 : 603,912.55 = 365,521.99 : x - Step 2: Convert to fraction form
438,014.66/603,912.55 = 365,521.99/x - Step 3: Cross multiply
438,014.66x = 603,912.55 × 365,521.99 - Step 4: Simplify right side
438,014.66x = 220,743,312,214.80 - Step 5: Solve for x
x = 220,743,312,214.80/438,014.66 - Step 6: Final answer
x = 503,963.30
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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.