Finding the Fourth Proportional to 1,125,461.39, 1,553,284.62 and 641,915.69
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Solution
The fourth proportional to 1,125,461.39, 1,553,284.62 and 641,915.69 is: 885,928.01
Step by Step Solution
- Step 1: Write the proportion equation
1,125,461.39 : 1,553,284.62 = 641,915.69 : x - Step 2: Convert to fraction form
1,125,461.39/1,553,284.62 = 641,915.69/x - Step 3: Cross multiply
1,125,461.39x = 1,553,284.62 × 641,915.69 - Step 4: Simplify right side
1,125,461.39x = 997,077,760,847.27 - Step 5: Solve for x
x = 997,077,760,847.27/1,125,461.39 - Step 6: Final answer
x = 885,928.01
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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.