Finding the Fourth Proportional to 486,957.80, 730,436.70 and 368,859.80
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Solution
The fourth proportional to 486,957.80, 730,436.70 and 368,859.80 is: 553,289.70
Step by Step Solution
- Step 1: Write the proportion equation
486,957.80 : 730,436.70 = 368,859.80 : x - Step 2: Convert to fraction form
486,957.80/730,436.70 = 368,859.80/x - Step 3: Cross multiply
486,957.80x = 730,436.70 × 368,859.80 - Step 4: Simplify right side
486,957.80x = 269,428,735,074.66 - Step 5: Solve for x
x = 269,428,735,074.66/486,957.80 - Step 6: Final answer
x = 553,289.70
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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.