Finding the Fourth Proportional to 420,765.92, 580,633.24 and 239,521.96
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Solution
The fourth proportional to 420,765.92, 580,633.24 and 239,521.96 is: 330,526.80
Step by Step Solution
- Step 1: Write the proportion equation
420,765.92 : 580,633.24 = 239,521.96 : x - Step 2: Convert to fraction form
420,765.92/580,633.24 = 239,521.96/x - Step 3: Cross multiply
420,765.92x = 580,633.24 × 239,521.96 - Step 4: Simplify right side
420,765.92x = 139,074,411,685.95 - Step 5: Solve for x
x = 139,074,411,685.95/420,765.92 - Step 6: Final answer
x = 330,526.80
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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.