Finding the Fourth Proportional to 906,138.77, 1,358,310.35 and 425,506.20
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Solution
The fourth proportional to 906,138.77, 1,358,310.35 and 425,506.20 is: 637,837.70
Step by Step Solution
- Step 1: Write the proportion equation
906,138.77 : 1,358,310.35 = 425,506.20 : x - Step 2: Convert to fraction form
906,138.77/1,358,310.35 = 425,506.20/x - Step 3: Cross multiply
906,138.77x = 1,358,310.35 × 425,506.20 - Step 4: Simplify right side
906,138.77x = 577,969,469,721.38 - Step 5: Solve for x
x = 577,969,469,721.38/906,138.77 - Step 6: Final answer
x = 637,837.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.