Finding the Fourth Proportional to 542,651.94, 748,883.88 and 300,918.31
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Solution
The fourth proportional to 542,651.94, 748,883.88 and 300,918.31 is: 415,280.69
Step by Step Solution
- Step 1: Write the proportion equation
542,651.94 : 748,883.88 = 300,918.31 : x - Step 2: Convert to fraction form
542,651.94/748,883.88 = 300,918.31/x - Step 3: Cross multiply
542,651.94x = 748,883.88 × 300,918.31 - Step 4: Simplify right side
542,651.94x = 225,352,869,683.63 - Step 5: Solve for x
x = 225,352,869,683.63/542,651.94 - Step 6: Final answer
x = 415,280.69
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1.5x scale
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.