Finding the Fourth Proportional to 813,468.36, 1,122,584.39 and 445,944.85
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Solution
The fourth proportional to 813,468.36, 1,122,584.39 and 445,944.85 is: 615,402.82
Step by Step Solution
- Step 1: Write the proportion equation
813,468.36 : 1,122,584.39 = 445,944.85 : x - Step 2: Convert to fraction form
813,468.36/1,122,584.39 = 445,944.85/x - Step 3: Cross multiply
813,468.36x = 1,122,584.39 × 445,944.85 - Step 4: Simplify right side
813,468.36x = 500,610,721,797.97 - Step 5: Solve for x
x = 500,610,721,797.97/813,468.36 - Step 6: Final answer
x = 615,402.82
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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.