Finding the Fourth Proportional to 1,393,915.75, 2,090,873.74 and 495,392.95
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Solution
The fourth proportional to 1,393,915.75, 2,090,873.74 and 495,392.95 is: 743,089.47
Step by Step Solution
- Step 1: Write the proportion equation
1,393,915.75 : 2,090,873.74 = 495,392.95 : x - Step 2: Convert to fraction form
1,393,915.75/2,090,873.74 = 495,392.95/x - Step 3: Cross multiply
1,393,915.75x = 2,090,873.74 × 495,392.95 - Step 4: Simplify right side
1,393,915.75x = 1,035,804,110,136.13 - Step 5: Solve for x
x = 1,035,804,110,136.13/1,393,915.75 - Step 6: Final answer
x = 743,089.47
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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.