Finding the Fourth Proportional to 420,959.44, 580,950.75 and 239,687.20
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Solution
The fourth proportional to 420,959.44, 580,950.75 and 239,687.20 is: 330,783.55
Step by Step Solution
- Step 1: Write the proportion equation
420,959.44 : 580,950.75 = 239,687.20 : x - Step 2: Convert to fraction form
420,959.44/580,950.75 = 239,687.20/x - Step 3: Cross multiply
420,959.44x = 580,950.75 × 239,687.20 - Step 4: Simplify right side
420,959.44x = 139,246,458,605.40 - Step 5: Solve for x
x = 139,246,458,605.40/420,959.44 - Step 6: Final answer
x = 330,783.55
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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.