Finding the Fourth Proportional to 443,572.79, 611,917.07 and 290,544.75
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Solution
The fourth proportional to 443,572.79, 611,917.07 and 290,544.75 is: 400,811.99
Step by Step Solution
- Step 1: Write the proportion equation
443,572.79 : 611,917.07 = 290,544.75 : x - Step 2: Convert to fraction form
443,572.79/611,917.07 = 290,544.75/x - Step 3: Cross multiply
443,572.79x = 611,917.07 × 290,544.75 - Step 4: Simplify right side
443,572.79x = 177,789,290,671.16 - Step 5: Solve for x
x = 177,789,290,671.16/443,572.79 - Step 6: Final answer
x = 400,811.99
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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.