Finding the Fourth Proportional to 810,267.09, 1,118,138.54 and 447,683.14
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Solution
The fourth proportional to 810,267.09, 1,118,138.54 and 447,683.14 is: 617,786.13
Step by Step Solution
- Step 1: Write the proportion equation
810,267.09 : 1,118,138.54 = 447,683.14 : x - Step 2: Convert to fraction form
810,267.09/1,118,138.54 = 447,683.14/x - Step 3: Cross multiply
810,267.09x = 1,118,138.54 × 447,683.14 - Step 4: Simplify right side
810,267.09x = 500,571,772,542.22 - Step 5: Solve for x
x = 500,571,772,542.22/810,267.09 - Step 6: Final answer
x = 617,786.13
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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.