Finding the Fourth Proportional to 657,741.75, 907,684.83 and 355,935.75
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Solution
The fourth proportional to 657,741.75, 907,684.83 and 355,935.75 is: 491,191.99
Step by Step Solution
- Step 1: Write the proportion equation
657,741.75 : 907,684.83 = 355,935.75 : x - Step 2: Convert to fraction form
657,741.75/907,684.83 = 355,935.75/x - Step 3: Cross multiply
657,741.75x = 907,684.83 × 355,935.75 - Step 4: Simplify right side
657,741.75x = 323,077,480,729.67 - Step 5: Solve for x
x = 323,077,480,729.67/657,741.75 - Step 6: Final answer
x = 491,191.99
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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.