Finding the Fourth Proportional to 762,415.94, 1,143,383.00 and 256,859.10
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Solution
The fourth proportional to 762,415.94, 1,143,383.00 and 256,859.10 is: 385,207.49
Step by Step Solution
- Step 1: Write the proportion equation
762,415.94 : 1,143,383.00 = 256,859.10 : x - Step 2: Convert to fraction form
762,415.94/1,143,383.00 = 256,859.10/x - Step 3: Cross multiply
762,415.94x = 1,143,383.00 × 256,859.10 - Step 4: Simplify right side
762,415.94x = 293,688,327,051.01 - Step 5: Solve for x
x = 293,688,327,051.01/762,415.94 - Step 6: Final answer
x = 385,207.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.