Finding the Fourth Proportional to 808,042.09, 1,115,106.68 and 445,478.93
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Solution
The fourth proportional to 808,042.09, 1,115,106.68 and 445,478.93 is: 614,765.66
Step by Step Solution
- Step 1: Write the proportion equation
808,042.09 : 1,115,106.68 = 445,478.93 : x - Step 2: Convert to fraction form
808,042.09/1,115,106.68 = 445,478.93/x - Step 3: Cross multiply
808,042.09x = 1,115,106.68 × 445,478.93 - Step 4: Simplify right side
808,042.09x = 496,756,530,642.25 - Step 5: Solve for x
x = 496,756,530,642.25/808,042.09 - Step 6: Final answer
x = 614,765.66
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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.