Finding the Fourth Proportional to 478,554.84, 660,435.09 and 263,694.84
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Solution
The fourth proportional to 478,554.84, 660,435.09 and 263,694.84 is: 363,915.09
Step by Step Solution
- Step 1: Write the proportion equation
478,554.84 : 660,435.09 = 263,694.84 : x - Step 2: Convert to fraction form
478,554.84/660,435.09 = 263,694.84/x - Step 3: Cross multiply
478,554.84x = 660,435.09 × 263,694.84 - Step 4: Simplify right side
478,554.84x = 174,153,325,387.94 - Step 5: Solve for x
x = 174,153,325,387.94/478,554.84 - Step 6: Final answer
x = 363,915.09
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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.