Finding the Fourth Proportional to 489,521.84, 734,149.10 and 134,451.44
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Solution
The fourth proportional to 489,521.84, 734,149.10 and 134,451.44 is: 201,640.45
Step by Step Solution
- Step 1: Write the proportion equation
489,521.84 : 734,149.10 = 134,451.44 : x - Step 2: Convert to fraction form
489,521.84/734,149.10 = 134,451.44/x - Step 3: Cross multiply
489,521.84x = 734,149.10 × 134,451.44 - Step 4: Simplify right side
489,521.84x = 98,707,403,669.70 - Step 5: Solve for x
x = 98,707,403,669.70/489,521.84 - Step 6: Final answer
x = 201,640.45
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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.