Finding the Fourth Proportional to 901,387.84, 1,243,915.59 and 493,516.12
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Solution
The fourth proportional to 901,387.84, 1,243,915.59 and 493,516.12 is: 681,052.45
Step by Step Solution
- Step 1: Write the proportion equation
901,387.84 : 1,243,915.59 = 493,516.12 : x - Step 2: Convert to fraction form
901,387.84/1,243,915.59 = 493,516.12/x - Step 3: Cross multiply
901,387.84x = 1,243,915.59 × 493,516.12 - Step 4: Simplify right side
901,387.84x = 613,892,395,584.31 - Step 5: Solve for x
x = 613,892,395,584.31/901,387.84 - Step 6: Final answer
x = 681,052.45
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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.