Finding the Fourth Proportional to 811,963.98, 1,120,512.69 and 449,413.02
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Solution
The fourth proportional to 811,963.98, 1,120,512.69 and 449,413.02 is: 620,191.29
Step by Step Solution
- Step 1: Write the proportion equation
811,963.98 : 1,120,512.69 = 449,413.02 : x - Step 2: Convert to fraction form
811,963.98/1,120,512.69 = 449,413.02/x - Step 3: Cross multiply
811,963.98x = 1,120,512.69 × 449,413.02 - Step 4: Simplify right side
811,963.98x = 503,572,991,961.22 - Step 5: Solve for x
x = 503,572,991,961.22/811,963.98 - Step 6: Final answer
x = 620,191.29
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.