Finding the Fourth Proportional to 691,795.09, 1,037,893.57 and 286,913.05
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Solution
The fourth proportional to 691,795.09, 1,037,893.57 and 286,913.05 is: 430,452.91
Step by Step Solution
- Step 1: Write the proportion equation
691,795.09 : 1,037,893.57 = 286,913.05 : x - Step 2: Convert to fraction form
691,795.09/1,037,893.57 = 286,913.05/x - Step 3: Cross multiply
691,795.09x = 1,037,893.57 × 286,913.05 - Step 4: Simplify right side
691,795.09x = 297,785,207,508.00 - Step 5: Solve for x
x = 297,785,207,508.00/691,795.09 - Step 6: Final answer
x = 430,452.91
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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.