Finding the Fourth Proportional to 811,317.92, 1,119,612.12 and 448,757.24
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Solution
The fourth proportional to 811,317.92, 1,119,612.12 and 448,757.24 is: 619,281.34
Step by Step Solution
- Step 1: Write the proportion equation
811,317.92 : 1,119,612.12 = 448,757.24 : x - Step 2: Convert to fraction form
811,317.92/1,119,612.12 = 448,757.24/x - Step 3: Cross multiply
811,317.92x = 1,119,612.12 × 448,757.24 - Step 4: Simplify right side
811,317.92x = 502,434,044,841.75 - Step 5: Solve for x
x = 502,434,044,841.75/811,317.92 - Step 6: Final answer
x = 619,281.34
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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.