Finding the Fourth Proportional to 458,596.99, 687,146.42 and 278,737.42
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Solution
The fourth proportional to 458,596.99, 687,146.42 and 278,737.42 is: 417,650.85
Step by Step Solution
- Step 1: Write the proportion equation
458,596.99 : 687,146.42 = 278,737.42 : x - Step 2: Convert to fraction form
458,596.99/687,146.42 = 278,737.42/x - Step 3: Cross multiply
458,596.99x = 687,146.42 × 278,737.42 - Step 4: Simplify right side
458,596.99x = 191,533,420,273.04 - Step 5: Solve for x
x = 191,533,420,273.04/458,596.99 - Step 6: Final answer
x = 417,650.85
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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.