Finding the Fourth Proportional to 420,693.68, 580,580.80 and 229,724.80
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Solution
The fourth proportional to 420,693.68, 580,580.80 and 229,724.80 is: 317,033.07
Step by Step Solution
- Step 1: Write the proportion equation
420,693.68 : 580,580.80 = 229,724.80 : x - Step 2: Convert to fraction form
420,693.68/580,580.80 = 229,724.80/x - Step 3: Cross multiply
420,693.68x = 580,580.80 × 229,724.80 - Step 4: Simplify right side
420,693.68x = 133,373,808,163.84 - Step 5: Solve for x
x = 133,373,808,163.84/420,693.68 - Step 6: Final answer
x = 317,033.07
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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.