Finding the Fourth Proportional to 455,554.08, 628,636.86 and 274,324.68
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Solution
The fourth proportional to 455,554.08, 628,636.86 and 274,324.68 is: 378,551.34
Step by Step Solution
- Step 1: Write the proportion equation
455,554.08 : 628,636.86 = 274,324.68 : x - Step 2: Convert to fraction form
455,554.08/628,636.86 = 274,324.68/x - Step 3: Cross multiply
455,554.08x = 628,636.86 × 274,324.68 - Step 4: Simplify right side
455,554.08x = 172,450,605,455.71 - Step 5: Solve for x
x = 172,450,605,455.71/455,554.08 - Step 6: Final answer
x = 378,551.34
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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.