Finding the Fourth Proportional to 913,238.84, 1,369,636.68 and 380,469.20
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Solution
The fourth proportional to 913,238.84, 1,369,636.68 and 380,469.20 is: 570,611.49
Step by Step Solution
- Step 1: Write the proportion equation
913,238.84 : 1,369,636.68 = 380,469.20 : x - Step 2: Convert to fraction form
913,238.84/1,369,636.68 = 380,469.20/x - Step 3: Cross multiply
913,238.84x = 1,369,636.68 × 380,469.20 - Step 4: Simplify right side
913,238.84x = 521,104,571,930.26 - Step 5: Solve for x
x = 521,104,571,930.26/913,238.84 - Step 6: Final answer
x = 570,611.49
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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.