Finding the Fourth Proportional to 830,413.28, 1,246,013.58 and 494,118.28
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Solution
The fourth proportional to 830,413.28, 1,246,013.58 and 494,118.28 is: 741,411.66
Step by Step Solution
- Step 1: Write the proportion equation
830,413.28 : 1,246,013.58 = 494,118.28 : x - Step 2: Convert to fraction form
830,413.28/1,246,013.58 = 494,118.28/x - Step 3: Cross multiply
830,413.28x = 1,246,013.58 × 494,118.28 - Step 4: Simplify right side
830,413.28x = 615,678,087,006.24 - Step 5: Solve for x
x = 615,678,087,006.24/830,413.28 - Step 6: Final answer
x = 741,411.66
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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.