Finding the Fourth Proportional to 457,689.24, 631,386.77 and 397,174.95
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Solution
The fourth proportional to 457,689.24, 631,386.77 and 397,174.95 is: 547,906.71
Step by Step Solution
- Step 1: Write the proportion equation
457,689.24 : 631,386.77 = 397,174.95 : x - Step 2: Convert to fraction form
457,689.24/631,386.77 = 397,174.95/x - Step 3: Cross multiply
457,689.24x = 631,386.77 × 397,174.95 - Step 4: Simplify right side
457,689.24x = 250,771,006,819.54 - Step 5: Solve for x
x = 250,771,006,819.54/457,689.24 - Step 6: Final answer
x = 547,906.71
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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.