Finding the Fourth Proportional to 509,689.24, 703,413.66 and 283,355.80
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Solution
The fourth proportional to 509,689.24, 703,413.66 and 283,355.80 is: 391,054.64
Step by Step Solution
- Step 1: Write the proportion equation
509,689.24 : 703,413.66 = 283,355.80 : x - Step 2: Convert to fraction form
509,689.24/703,413.66 = 283,355.80/x - Step 3: Cross multiply
509,689.24x = 703,413.66 × 283,355.80 - Step 4: Simplify right side
509,689.24x = 199,316,340,360.23 - Step 5: Solve for x
x = 199,316,340,360.23/509,689.24 - Step 6: Final answer
x = 391,054.64
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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.