Finding the Fourth Proportional to 657,047.68, 906,725.79 and 355,241.68
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Solution
The fourth proportional to 657,047.68, 906,725.79 and 355,241.68 is: 490,233.51
Step by Step Solution
- Step 1: Write the proportion equation
657,047.68 : 906,725.79 = 355,241.68 : x - Step 2: Convert to fraction form
657,047.68/906,725.79 = 355,241.68/x - Step 3: Cross multiply
657,047.68x = 906,725.79 × 355,241.68 - Step 4: Simplify right side
657,047.68x = 322,106,790,672.11 - Step 5: Solve for x
x = 322,106,790,672.11/657,047.68 - Step 6: Final answer
x = 490,233.51
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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.