Finding the Fourth Proportional to 911,441.97, 1,257,896.79 and 549,048.78
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Solution
The fourth proportional to 911,441.97, 1,257,896.79 and 549,048.78 is: 757,751.70
Step by Step Solution
- Step 1: Write the proportion equation
911,441.97 : 1,257,896.79 = 549,048.78 : x - Step 2: Convert to fraction form
911,441.97/1,257,896.79 = 549,048.78/x - Step 3: Cross multiply
911,441.97x = 1,257,896.79 × 549,048.78 - Step 4: Simplify right side
911,441.97x = 690,646,697,915.42 - Step 5: Solve for x
x = 690,646,697,915.42/911,441.97 - Step 6: Final answer
x = 757,751.70
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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.