Finding the Fourth Proportional to 657,797.63, 907,760.79 and 355,991.63
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Solution
The fourth proportional to 657,797.63, 907,760.79 and 355,991.63 is: 491,268.48
Step by Step Solution
- Step 1: Write the proportion equation
657,797.63 : 907,760.79 = 355,991.63 : x - Step 2: Convert to fraction form
657,797.63/907,760.79 = 355,991.63/x - Step 3: Cross multiply
657,797.63x = 907,760.79 × 355,991.63 - Step 4: Simplify right side
657,797.63x = 323,155,238,743.38 - Step 5: Solve for x
x = 323,155,238,743.38/657,797.63 - Step 6: Final answer
x = 491,268.48
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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.