Finding the Fourth Proportional to 642,902.71, 964,354.01 and 216,402.74
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Solution
The fourth proportional to 642,902.71, 964,354.01 and 216,402.74 is: 324,604.09
Step by Step Solution
- Step 1: Write the proportion equation
642,902.71 : 964,354.01 = 216,402.74 : x - Step 2: Convert to fraction form
642,902.71/964,354.01 = 216,402.74/x - Step 3: Cross multiply
642,902.71x = 964,354.01 × 216,402.74 - Step 4: Simplify right side
642,902.71x = 208,688,847,806.53 - Step 5: Solve for x
x = 208,688,847,806.53/642,902.71 - Step 6: Final answer
x = 324,604.09
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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.