Finding the Fourth Proportional to 420,850.92, 580,750.74 and 239,607.12
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Solution
The fourth proportional to 420,850.92, 580,750.74 and 239,607.12 is: 330,644.43
Step by Step Solution
- Step 1: Write the proportion equation
420,850.92 : 580,750.74 = 239,607.12 : x - Step 2: Convert to fraction form
420,850.92/580,750.74 = 239,607.12/x - Step 3: Cross multiply
420,850.92x = 580,750.74 × 239,607.12 - Step 4: Simplify right side
420,850.92x = 139,152,012,249.27 - Step 5: Solve for x
x = 139,152,012,249.27/420,850.92 - Step 6: Final answer
x = 330,644.43
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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.