Finding the Fourth Proportional to 689,834.99, 1,034,877.63 and 285,027.97
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Solution
The fourth proportional to 689,834.99, 1,034,877.63 and 285,027.97 is: 427,593.66
Step by Step Solution
- Step 1: Write the proportion equation
689,834.99 : 1,034,877.63 = 285,027.97 : x - Step 2: Convert to fraction form
689,834.99/1,034,877.63 = 285,027.97/x - Step 3: Cross multiply
689,834.99x = 1,034,877.63 × 285,027.97 - Step 4: Simplify right side
689,834.99x = 294,969,070,077.31 - Step 5: Solve for x
x = 294,969,070,077.31/689,834.99 - Step 6: Final answer
x = 427,593.66
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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.