Finding the Fourth Proportional to 420,848.42, 580,747.29 and 239,604.62
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Solution
The fourth proportional to 420,848.42, 580,747.29 and 239,604.62 is: 330,640.98
Step by Step Solution
- Step 1: Write the proportion equation
420,848.42 : 580,747.29 = 239,604.62 : x - Step 2: Convert to fraction form
420,848.42/580,747.29 = 239,604.62/x - Step 3: Cross multiply
420,848.42x = 580,747.29 × 239,604.62 - Step 4: Simplify right side
420,848.42x = 139,149,733,736.48 - Step 5: Solve for x
x = 139,149,733,736.48/420,848.42 - Step 6: Final answer
x = 330,640.98
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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.