Finding the Fourth Proportional to 898,940.12, 1,240,541.58 and 491,047.60
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Solution
The fourth proportional to 898,940.12, 1,240,541.58 and 491,047.60 is: 677,647.99
Step by Step Solution
- Step 1: Write the proportion equation
898,940.12 : 1,240,541.58 = 491,047.60 : x - Step 2: Convert to fraction form
898,940.12/1,240,541.58 = 491,047.60/x - Step 3: Cross multiply
898,940.12x = 1,240,541.58 × 491,047.60 - Step 4: Simplify right side
898,940.12x = 609,164,965,559.21 - Step 5: Solve for x
x = 609,164,965,559.21/898,940.12 - Step 6: Final answer
x = 677,647.99
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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.