Finding the Fourth Proportional to 499,149.09, 688,948.20 and 284,416.07
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Solution
The fourth proportional to 499,149.09, 688,948.20 and 284,416.07 is: 392,563.95
Step by Step Solution
- Step 1: Write the proportion equation
499,149.09 : 688,948.20 = 284,416.07 : x - Step 2: Convert to fraction form
499,149.09/688,948.20 = 284,416.07/x - Step 3: Cross multiply
499,149.09x = 688,948.20 × 284,416.07 - Step 4: Simplify right side
499,149.09x = 195,947,936,032.83 - Step 5: Solve for x
x = 195,947,936,032.83/499,149.09 - Step 6: Final answer
x = 392,563.95
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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.