Finding the Fourth Proportional to 658,979.92, 909,382.44 and 372,489.94
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Solution
The fourth proportional to 658,979.92, 909,382.44 and 372,489.94 is: 514,030.55
Step by Step Solution
- Step 1: Write the proportion equation
658,979.92 : 909,382.44 = 372,489.94 : x - Step 2: Convert to fraction form
658,979.92/909,382.44 = 372,489.94/x - Step 3: Cross multiply
658,979.92x = 909,382.44 × 372,489.94 - Step 4: Simplify right side
658,979.92x = 338,735,810,512.65 - Step 5: Solve for x
x = 338,735,810,512.65/658,979.92 - Step 6: Final answer
x = 514,030.55
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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.