Finding the Fourth Proportional to 559,137.41, 838,706.11 and 138,413.28
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Solution
The fourth proportional to 559,137.41, 838,706.11 and 138,413.28 is: 207,619.92
Step by Step Solution
- Step 1: Write the proportion equation
559,137.41 : 838,706.11 = 138,413.28 : x - Step 2: Convert to fraction form
559,137.41/838,706.11 = 138,413.28/x - Step 3: Cross multiply
559,137.41x = 838,706.11 × 138,413.28 - Step 4: Simplify right side
559,137.41x = 116,088,063,641.14 - Step 5: Solve for x
x = 116,088,063,641.14/559,137.41 - Step 6: Final answer
x = 207,619.92
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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.