Finding the Fourth Proportional to 813,468.97, 1,122,585.24 and 445,945.46
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Solution
The fourth proportional to 813,468.97, 1,122,585.24 and 445,945.46 is: 615,403.67
Step by Step Solution
- Step 1: Write the proportion equation
813,468.97 : 1,122,585.24 = 445,945.46 : x - Step 2: Convert to fraction form
813,468.97/1,122,585.24 = 445,945.46/x - Step 3: Cross multiply
813,468.97x = 1,122,585.24 × 445,945.46 - Step 4: Simplify right side
813,468.97x = 500,611,785,628.08 - Step 5: Solve for x
x = 500,611,785,628.08/813,468.97 - Step 6: Final answer
x = 615,403.67
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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.