Finding the Fourth Proportional to 822,853.87, 1,234,336.25 and 317,419.07
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Solution
The fourth proportional to 822,853.87, 1,234,336.25 and 317,419.07 is: 476,149.99
Step by Step Solution
- Step 1: Write the proportion equation
822,853.87 : 1,234,336.25 = 317,419.07 : x - Step 2: Convert to fraction form
822,853.87/1,234,336.25 = 317,419.07/x - Step 3: Cross multiply
822,853.87x = 1,234,336.25 × 317,419.07 - Step 4: Simplify right side
822,853.87x = 391,801,859,164.15 - Step 5: Solve for x
x = 391,801,859,164.15/822,853.87 - Step 6: Final answer
x = 476,149.99
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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.