Finding the Fourth Proportional to 810,400.08, 1,118,419.44 and 447,894.70
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Solution
The fourth proportional to 810,400.08, 1,118,419.44 and 447,894.70 is: 618,131.90
Step by Step Solution
- Step 1: Write the proportion equation
810,400.08 : 1,118,419.44 = 447,894.70 : x - Step 2: Convert to fraction form
810,400.08/1,118,419.44 = 447,894.70/x - Step 3: Cross multiply
810,400.08x = 1,118,419.44 × 447,894.70 - Step 4: Simplify right side
810,400.08x = 500,934,139,552.97 - Step 5: Solve for x
x = 500,934,139,552.97/810,400.08 - Step 6: Final answer
x = 618,131.90
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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.