Finding the Fourth Proportional to 855,638.09, 1,180,794.54 and 468,447.05
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Solution
The fourth proportional to 855,638.09, 1,180,794.54 and 468,447.05 is: 646,464.58
Step by Step Solution
- Step 1: Write the proportion equation
855,638.09 : 1,180,794.54 = 468,447.05 : x - Step 2: Convert to fraction form
855,638.09/1,180,794.54 = 468,447.05/x - Step 3: Cross multiply
855,638.09x = 1,180,794.54 × 468,447.05 - Step 4: Simplify right side
855,638.09x = 553,139,713,015.13 - Step 5: Solve for x
x = 553,139,713,015.13/855,638.09 - Step 6: Final answer
x = 646,464.58
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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.