Finding the Fourth Proportional to 885,438.97, 1,221,811.57 and 498,247.63
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Solution
The fourth proportional to 885,438.97, 1,221,811.57 and 498,247.63 is: 687,528.72
Step by Step Solution
- Step 1: Write the proportion equation
885,438.97 : 1,221,811.57 = 498,247.63 : x - Step 2: Convert to fraction form
885,438.97/1,221,811.57 = 498,247.63/x - Step 3: Cross multiply
885,438.97x = 1,221,811.57 × 498,247.63 - Step 4: Simplify right side
885,438.97x = 608,764,718,662.38 - Step 5: Solve for x
x = 608,764,718,662.38/885,438.97 - Step 6: Final answer
x = 687,528.72
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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.