Finding the Fourth Proportional to 396,617.68, 547,083.12 and 235,358.56
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Solution
The fourth proportional to 396,617.68, 547,083.12 and 235,358.56 is: 324,646.89
Step by Step Solution
- Step 1: Write the proportion equation
396,617.68 : 547,083.12 = 235,358.56 : x - Step 2: Convert to fraction form
396,617.68/547,083.12 = 235,358.56/x - Step 3: Cross multiply
396,617.68x = 547,083.12 × 235,358.56 - Step 4: Simplify right side
396,617.68x = 128,760,695,323.51 - Step 5: Solve for x
x = 128,760,695,323.51/396,617.68 - Step 6: Final answer
x = 324,646.89
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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.