Finding the Fourth Proportional to 665,424.11, 998,846.54 and 286,532.44
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Solution
The fourth proportional to 665,424.11, 998,846.54 and 286,532.44 is: 430,104.55
Step by Step Solution
- Step 1: Write the proportion equation
665,424.11 : 998,846.54 = 286,532.44 : x - Step 2: Convert to fraction form
665,424.11/998,846.54 = 286,532.44/x - Step 3: Cross multiply
665,424.11x = 998,846.54 × 286,532.44 - Step 4: Simplify right side
665,424.11x = 286,201,936,291.76 - Step 5: Solve for x
x = 286,201,936,291.76/665,424.11 - Step 6: Final answer
x = 430,104.55
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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.