Finding the Fourth Proportional to 638,393.93, 880,989.61 and 351,924.26
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Solution
The fourth proportional to 638,393.93, 880,989.61 and 351,924.26 is: 485,658.78
Step by Step Solution
- Step 1: Write the proportion equation
638,393.93 : 880,989.61 = 351,924.26 : x - Step 2: Convert to fraction form
638,393.93/880,989.61 = 351,924.26/x - Step 3: Cross multiply
638,393.93x = 880,989.61 × 351,924.26 - Step 4: Simplify right side
638,393.93x = 310,041,617,889.60 - Step 5: Solve for x
x = 310,041,617,889.60/638,393.93 - Step 6: Final answer
x = 485,658.78
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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.