Finding the Fourth Proportional to 527,112.18, 727,413.75 and 285,394.95
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Solution
The fourth proportional to 527,112.18, 727,413.75 and 285,394.95 is: 393,844.46
Step by Step Solution
- Step 1: Write the proportion equation
527,112.18 : 727,413.75 = 285,394.95 : x - Step 2: Convert to fraction form
527,112.18/727,413.75 = 285,394.95/x - Step 3: Cross multiply
527,112.18x = 727,413.75 × 285,394.95 - Step 4: Simplify right side
527,112.18x = 207,600,210,810.56 - Step 5: Solve for x
x = 207,600,210,810.56/527,112.18 - Step 6: Final answer
x = 393,844.46
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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.