Finding the Fourth Proportional to 519,163.74, 716,444.55 and 289,718.64
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Solution
The fourth proportional to 519,163.74, 716,444.55 and 289,718.64 is: 399,810.94
Step by Step Solution
- Step 1: Write the proportion equation
519,163.74 : 716,444.55 = 289,718.64 : x - Step 2: Convert to fraction form
519,163.74/716,444.55 = 289,718.64/x - Step 3: Cross multiply
519,163.74x = 716,444.55 × 289,718.64 - Step 4: Simplify right side
519,163.74x = 207,567,340,661.41 - Step 5: Solve for x
x = 207,567,340,661.41/519,163.74 - Step 6: Final answer
x = 399,810.94
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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.