Finding the Fourth Proportional to 455,091.19, 628,026.11 and 253,887.19
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Solution
The fourth proportional to 455,091.19, 628,026.11 and 253,887.19 is: 350,364.47
Step by Step Solution
- Step 1: Write the proportion equation
455,091.19 : 628,026.11 = 253,887.19 : x - Step 2: Convert to fraction form
455,091.19/628,026.11 = 253,887.19/x - Step 3: Cross multiply
455,091.19x = 628,026.11 × 253,887.19 - Step 4: Simplify right side
455,091.19x = 159,447,782,427.11 - Step 5: Solve for x
x = 159,447,782,427.11/455,091.19 - Step 6: Final answer
x = 350,364.47
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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.