Finding the Fourth Proportional to 420,812.10, 580,719.93 and 229,825.44
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Solution
The fourth proportional to 420,812.10, 580,719.93 and 229,825.44 is: 317,158.69
Step by Step Solution
- Step 1: Write the proportion equation
420,812.10 : 580,719.93 = 229,825.44 : x - Step 2: Convert to fraction form
420,812.10/580,719.93 = 229,825.44/x - Step 3: Cross multiply
420,812.10x = 580,719.93 × 229,825.44 - Step 4: Simplify right side
420,812.10x = 133,464,213,429.02 - Step 5: Solve for x
x = 133,464,213,429.02/420,812.10 - Step 6: Final answer
x = 317,158.69
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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.