Finding the Fourth Proportional to 486,578.83, 671,465.76 and 268,782.81
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Solution
The fourth proportional to 486,578.83, 671,465.76 and 268,782.81 is: 370,913.09
Step by Step Solution
- Step 1: Write the proportion equation
486,578.83 : 671,465.76 = 268,782.81 : x - Step 2: Convert to fraction form
486,578.83/671,465.76 = 268,782.81/x - Step 3: Cross multiply
486,578.83x = 671,465.76 × 268,782.81 - Step 4: Simplify right side
486,578.83x = 180,478,457,317.52 - Step 5: Solve for x
x = 180,478,457,317.52/486,578.83 - Step 6: Final answer
x = 370,913.09
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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.