Finding the Fourth Proportional to 813,322.58, 1,220,238.84 and 489,464.03
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Solution
The fourth proportional to 813,322.58, 1,220,238.84 and 489,464.03 is: 734,349.49
Step by Step Solution
- Step 1: Write the proportion equation
813,322.58 : 1,220,238.84 = 489,464.03 : x - Step 2: Convert to fraction form
813,322.58/1,220,238.84 = 489,464.03/x - Step 3: Cross multiply
813,322.58x = 1,220,238.84 × 489,464.03 - Step 4: Simplify right side
813,322.58x = 597,263,020,188.93 - Step 5: Solve for x
x = 597,263,020,188.93/813,322.58 - Step 6: Final answer
x = 734,349.49
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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.