Finding the Fourth Proportional to 420,562.48, 630,197.63 and 285,450.84
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Solution
The fourth proportional to 420,562.48, 630,197.63 and 285,450.84 is: 427,737.72
Step by Step Solution
- Step 1: Write the proportion equation
420,562.48 : 630,197.63 = 285,450.84 : x - Step 2: Convert to fraction form
420,562.48/630,197.63 = 285,450.84/x - Step 3: Cross multiply
420,562.48x = 630,197.63 × 285,450.84 - Step 4: Simplify right side
420,562.48x = 179,890,438,271.27 - Step 5: Solve for x
x = 179,890,438,271.27/420,562.48 - Step 6: Final answer
x = 427,737.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.