Finding the Fourth Proportional to 489,519.84, 734,146.10 and 134,449.44
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Solution
The fourth proportional to 489,519.84, 734,146.10 and 134,449.44 is: 201,637.45
Step by Step Solution
- Step 1: Write the proportion equation
489,519.84 : 734,146.10 = 134,449.44 : x - Step 2: Convert to fraction form
489,519.84/734,146.10 = 134,449.44/x - Step 3: Cross multiply
489,519.84x = 734,146.10 × 134,449.44 - Step 4: Simplify right side
489,519.84x = 98,705,532,023.18 - Step 5: Solve for x
x = 98,705,532,023.18/489,519.84 - Step 6: Final answer
x = 201,637.45
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1.5x scale
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.