Finding the Fourth Proportional to 663,737.09, 915,955.49 and 361,931.09
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Solution
The fourth proportional to 663,737.09, 915,955.49 and 361,931.09 is: 499,463.98
Step by Step Solution
- Step 1: Write the proportion equation
663,737.09 : 915,955.49 = 361,931.09 : x - Step 2: Convert to fraction form
663,737.09/915,955.49 = 361,931.09/x - Step 3: Cross multiply
663,737.09x = 915,955.49 × 361,931.09 - Step 4: Simplify right side
663,737.09x = 331,512,765,212.23 - Step 5: Solve for x
x = 331,512,765,212.23/663,737.09 - Step 6: Final answer
x = 499,463.98
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1.5x scale
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.