Finding the Fourth Proportional to 718,998.17, 992,577.02 and 447,153.63
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Solution
The fourth proportional to 718,998.17, 992,577.02 and 447,153.63 is: 617,295.62
Step by Step Solution
- Step 1: Write the proportion equation
718,998.17 : 992,577.02 = 447,153.63 : x - Step 2: Convert to fraction form
718,998.17/992,577.02 = 447,153.63/x - Step 3: Cross multiply
718,998.17x = 992,577.02 × 447,153.63 - Step 4: Simplify right side
718,998.17x = 443,834,415,311.81 - Step 5: Solve for x
x = 443,834,415,311.81/718,998.17 - Step 6: Final answer
x = 617,295.62
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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.