Finding the Fourth Proportional to 1,368,915.86, 1,889,356.60 and 879,497.19
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Solution
The fourth proportional to 1,368,915.86, 1,889,356.60 and 879,497.19 is: 1,213,868.48
Step by Step Solution
- Step 1: Write the proportion equation
1,368,915.86 : 1,889,356.60 = 879,497.19 : x - Step 2: Convert to fraction form
1,368,915.86/1,889,356.60 = 879,497.19/x - Step 3: Cross multiply
1,368,915.86x = 1,889,356.60 × 879,497.19 - Step 4: Simplify right side
1,368,915.86x = 1,661,683,820,607.95 - Step 5: Solve for x
x = 1,661,683,820,607.95/1,368,915.86 - Step 6: Final answer
x = 1,213,868.48
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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.