Finding the Fourth Proportional to 757,458.05, 1,044,346.59 and 485,078.13
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Solution
The fourth proportional to 757,458.05, 1,044,346.59 and 485,078.13 is: 668,802.31
Step by Step Solution
- Step 1: Write the proportion equation
757,458.05 : 1,044,346.59 = 485,078.13 : x - Step 2: Convert to fraction form
757,458.05/1,044,346.59 = 485,078.13/x - Step 3: Cross multiply
757,458.05x = 1,044,346.59 × 485,078.13 - Step 4: Simplify right side
757,458.05x = 506,589,690,949.08 - Step 5: Solve for x
x = 506,589,690,949.08/757,458.05 - Step 6: Final answer
x = 668,802.31
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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.