Finding the Fourth Proportional to 820,569.99, 1,230,731.87 and 259,531.59
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Solution
The fourth proportional to 820,569.99, 1,230,731.87 and 259,531.59 is: 389,258.45
Step by Step Solution
- Step 1: Write the proportion equation
820,569.99 : 1,230,731.87 = 259,531.59 : x - Step 2: Convert to fraction form
820,569.99/1,230,731.87 = 259,531.59/x - Step 3: Cross multiply
820,569.99x = 1,230,731.87 × 259,531.59 - Step 4: Simplify right side
820,569.99x = 319,413,803,862.23 - Step 5: Solve for x
x = 319,413,803,862.23/820,569.99 - Step 6: Final answer
x = 389,258.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.