Finding the Fourth Proportional to 841,402.98, 1,161,131.49 and 459,427.05
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Solution
The fourth proportional to 841,402.98, 1,161,131.49 and 459,427.05 is: 634,006.81
Step by Step Solution
- Step 1: Write the proportion equation
841,402.98 : 1,161,131.49 = 459,427.05 : x - Step 2: Convert to fraction form
841,402.98/1,161,131.49 = 459,427.05/x - Step 3: Cross multiply
841,402.98x = 1,161,131.49 × 459,427.05 - Step 4: Simplify right side
841,402.98x = 533,455,215,112.81 - Step 5: Solve for x
x = 533,455,215,112.81/841,402.98 - Step 6: Final answer
x = 634,006.81
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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.