Finding the Fourth Proportional to 439,257.32, 606,283.62 and 288,558.44
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Solution
The fourth proportional to 439,257.32, 606,283.62 and 288,558.44 is: 398,281.94
Step by Step Solution
- Step 1: Write the proportion equation
439,257.32 : 606,283.62 = 288,558.44 : x - Step 2: Convert to fraction form
439,257.32/606,283.62 = 288,558.44/x - Step 3: Cross multiply
439,257.32x = 606,283.62 × 288,558.44 - Step 4: Simplify right side
439,257.32x = 174,948,255,584.75 - Step 5: Solve for x
x = 174,948,255,584.75/439,257.32 - Step 6: Final answer
x = 398,281.94
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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.