Finding the Fourth Proportional to 730,497.47, 1,007,791.74 and 485,600.65
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Solution
The fourth proportional to 730,497.47, 1,007,791.74 and 485,600.65 is: 669,932.95
Step by Step Solution
- Step 1: Write the proportion equation
730,497.47 : 1,007,791.74 = 485,600.65 : x - Step 2: Convert to fraction form
730,497.47/1,007,791.74 = 485,600.65/x - Step 3: Cross multiply
730,497.47x = 1,007,791.74 × 485,600.65 - Step 4: Simplify right side
730,497.47x = 489,384,321,489.15 - Step 5: Solve for x
x = 489,384,321,489.15/730,497.47 - Step 6: Final answer
x = 669,932.95
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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.