Finding the Fourth Proportional to 638,056.35, 880,556.99 and 351,576.36
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Solution
The fourth proportional to 638,056.35, 880,556.99 and 351,576.36 is: 485,196.99
Step by Step Solution
- Step 1: Write the proportion equation
638,056.35 : 880,556.99 = 351,576.36 : x - Step 2: Convert to fraction form
638,056.35/880,556.99 = 351,576.36/x - Step 3: Cross multiply
638,056.35x = 880,556.99 × 351,576.36 - Step 4: Simplify right side
638,056.35x = 309,583,019,558.88 - Step 5: Solve for x
x = 309,583,019,558.88/638,056.35 - Step 6: Final answer
x = 485,196.99
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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.