Finding the Fourth Proportional to 561,953.99, 775,496.07 and 307,305.11
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Solution
The fourth proportional to 561,953.99, 775,496.07 and 307,305.11 is: 424,080.81
Step by Step Solution
- Step 1: Write the proportion equation
561,953.99 : 775,496.07 = 307,305.11 : x - Step 2: Convert to fraction form
561,953.99/775,496.07 = 307,305.11/x - Step 3: Cross multiply
561,953.99x = 775,496.07 × 307,305.11 - Step 4: Simplify right side
561,953.99x = 238,313,901,218.44 - Step 5: Solve for x
x = 238,313,901,218.44/561,953.99 - Step 6: Final answer
x = 424,080.81
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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.