Finding the Fourth Proportional to 906,427.81, 1,250,878.71 and 492,968.44
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Solution
The fourth proportional to 906,427.81, 1,250,878.71 and 492,968.44 is: 680,300.98
Step by Step Solution
- Step 1: Write the proportion equation
906,427.81 : 1,250,878.71 = 492,968.44 : x - Step 2: Convert to fraction form
906,427.81/1,250,878.71 = 492,968.44/x - Step 3: Cross multiply
906,427.81x = 1,250,878.71 × 492,968.44 - Step 4: Simplify right side
906,427.81x = 616,643,726,297.91 - Step 5: Solve for x
x = 616,643,726,297.91/906,427.81 - Step 6: Final answer
x = 680,300.98
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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.