Finding the Fourth Proportional to 491,413.08, 678,037.85 and 276,474.72
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Solution
The fourth proportional to 491,413.08, 678,037.85 and 276,474.72 is: 381,471.99
Step by Step Solution
- Step 1: Write the proportion equation
491,413.08 : 678,037.85 = 276,474.72 : x - Step 2: Convert to fraction form
491,413.08/678,037.85 = 276,474.72/x - Step 3: Cross multiply
491,413.08x = 678,037.85 × 276,474.72 - Step 4: Simplify right side
491,413.08x = 187,460,326,925.20 - Step 5: Solve for x
x = 187,460,326,925.20/491,413.08 - Step 6: Final answer
x = 381,471.99
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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.