Finding the Fourth Proportional to 755,774.40, 1,042,961.76 and 416,235.36
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Solution
The fourth proportional to 755,774.40, 1,042,961.76 and 416,235.36 is: 574,400.99
Step by Step Solution
- Step 1: Write the proportion equation
755,774.40 : 1,042,961.76 = 416,235.36 : x - Step 2: Convert to fraction form
755,774.40/1,042,961.76 = 416,235.36/x - Step 3: Cross multiply
755,774.40x = 1,042,961.76 × 416,235.36 - Step 4: Simplify right side
755,774.40x = 434,117,563,639.83 - Step 5: Solve for x
x = 434,117,563,639.83/755,774.40 - Step 6: Final answer
x = 574,400.99
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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.