Finding the Fourth Proportional to 657,923.97, 907,936.43 and 356,117.97
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Solution
The fourth proportional to 657,923.97, 907,936.43 and 356,117.97 is: 491,443.53
Step by Step Solution
- Step 1: Write the proportion equation
657,923.97 : 907,936.43 = 356,117.97 : x - Step 2: Convert to fraction form
657,923.97/907,936.43 = 356,117.97/x - Step 3: Cross multiply
657,923.97x = 907,936.43 × 356,117.97 - Step 4: Simplify right side
657,923.97x = 323,332,474,691.26 - Step 5: Solve for x
x = 323,332,474,691.26/657,923.97 - Step 6: Final answer
x = 491,443.53
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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.