Finding the Fourth Proportional to 657,188.08, 906,919.56 and 355,382.08
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Solution
The fourth proportional to 657,188.08, 906,919.56 and 355,382.08 is: 490,427.28
Step by Step Solution
- Step 1: Write the proportion equation
657,188.08 : 906,919.56 = 355,382.08 : x - Step 2: Convert to fraction form
657,188.08/906,919.56 = 355,382.08/x - Step 3: Cross multiply
657,188.08x = 906,919.56 × 355,382.08 - Step 4: Simplify right side
657,188.08x = 322,302,959,625.49 - Step 5: Solve for x
x = 322,302,959,625.49/657,188.08 - Step 6: Final answer
x = 490,427.28
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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.