Finding the Fourth Proportional to 657,055.68, 906,736.82 and 355,249.68
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Solution
The fourth proportional to 657,055.68, 906,736.82 and 355,249.68 is: 490,244.55
Step by Step Solution
- Step 1: Write the proportion equation
657,055.68 : 906,736.82 = 355,249.68 : x - Step 2: Convert to fraction form
657,055.68/906,736.82 = 355,249.68/x - Step 3: Cross multiply
657,055.68x = 906,736.82 × 355,249.68 - Step 4: Simplify right side
657,055.68x = 322,117,965,149.22 - Step 5: Solve for x
x = 322,117,965,149.22/657,055.68 - Step 6: Final answer
x = 490,244.55
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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.