Finding the Fourth Proportional to 690,503.24, 952,636.56 and 689,438.84
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Solution
The fourth proportional to 690,503.24, 952,636.56 and 689,438.84 is: 951,168.09
Step by Step Solution
- Step 1: Write the proportion equation
690,503.24 : 952,636.56 = 689,438.84 : x - Step 2: Convert to fraction form
690,503.24/952,636.56 = 689,438.84/x - Step 3: Cross multiply
690,503.24x = 952,636.56 × 689,438.84 - Step 4: Simplify right side
690,503.24x = 656,784,644,867.99 - Step 5: Solve for x
x = 656,784,644,867.99/690,503.24 - Step 6: Final answer
x = 951,168.09
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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.