Finding the Fourth Proportional to 838,310.44, 1,156,868.54 and 456,340.09
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Solution
The fourth proportional to 838,310.44, 1,156,868.54 and 456,340.09 is: 629,749.40
Step by Step Solution
- Step 1: Write the proportion equation
838,310.44 : 1,156,868.54 = 456,340.09 : x - Step 2: Convert to fraction form
838,310.44/1,156,868.54 = 456,340.09/x - Step 3: Cross multiply
838,310.44x = 1,156,868.54 × 456,340.09 - Step 4: Simplify right side
838,310.44x = 527,925,493,661.77 - Step 5: Solve for x
x = 527,925,493,661.77/838,310.44 - Step 6: Final answer
x = 629,749.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.