Finding the Fourth Proportional to 719,166.95, 992,474.17 and 392,497.79
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Solution
The fourth proportional to 719,166.95, 992,474.17 and 392,497.79 is: 541,659.92
Step by Step Solution
- Step 1: Write the proportion equation
719,166.95 : 992,474.17 = 392,497.79 : x - Step 2: Convert to fraction form
719,166.95/992,474.17 = 392,497.79/x - Step 3: Cross multiply
719,166.95x = 992,474.17 × 392,497.79 - Step 4: Simplify right side
719,166.95x = 389,543,912,413.47 - Step 5: Solve for x
x = 389,543,912,413.47/719,166.95 - Step 6: Final answer
x = 541,659.92
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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.