Finding the Fourth Proportional to 639,163.98, 882,045.32 and 352,683.99
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Solution
The fourth proportional to 639,163.98, 882,045.32 and 352,683.99 is: 486,703.37
Step by Step Solution
- Step 1: Write the proportion equation
639,163.98 : 882,045.32 = 352,683.99 : x - Step 2: Convert to fraction form
639,163.98/882,045.32 = 352,683.99/x - Step 3: Cross multiply
639,163.98x = 882,045.32 × 352,683.99 - Step 4: Simplify right side
639,163.98x = 311,083,261,055.01 - Step 5: Solve for x
x = 311,083,261,055.01/639,163.98 - Step 6: Final answer
x = 486,703.37
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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.