Finding the Fourth Proportional to 858,908.70, 1,288,363.05 and 297,943.20
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Solution
The fourth proportional to 858,908.70, 1,288,363.05 and 297,943.20 is: 446,914.80
Step by Step Solution
- Step 1: Write the proportion equation
858,908.70 : 1,288,363.05 = 297,943.20 : x - Step 2: Convert to fraction form
858,908.70/1,288,363.05 = 297,943.20/x - Step 3: Cross multiply
858,908.70x = 1,288,363.05 × 297,943.20 - Step 4: Simplify right side
858,908.70x = 383,859,009,878.76 - Step 5: Solve for x
x = 383,859,009,878.76/858,908.70 - Step 6: Final answer
x = 446,914.80
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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.