Finding the Fourth Proportional to 430,125.16, 644,709.66 and 324,601.96
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Solution
The fourth proportional to 430,125.16, 644,709.66 and 324,601.96 is: 486,542.15
Step by Step Solution
- Step 1: Write the proportion equation
430,125.16 : 644,709.66 = 324,601.96 : x - Step 2: Convert to fraction form
430,125.16/644,709.66 = 324,601.96/x - Step 3: Cross multiply
430,125.16x = 644,709.66 × 324,601.96 - Step 4: Simplify right side
430,125.16x = 209,274,019,266.93 - Step 5: Solve for x
x = 209,274,019,266.93/430,125.16 - Step 6: Final answer
x = 486,542.15
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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.