Finding the Fourth Proportional to 668,918.52, 923,102.80 and 362,987.12
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Solution
The fourth proportional to 668,918.52, 923,102.80 and 362,987.12 is: 500,919.65
Step by Step Solution
- Step 1: Write the proportion equation
668,918.52 : 923,102.80 = 362,987.12 : x - Step 2: Convert to fraction form
668,918.52/923,102.80 = 362,987.12/x - Step 3: Cross multiply
668,918.52x = 923,102.80 × 362,987.12 - Step 4: Simplify right side
668,918.52x = 335,074,428,236.23 - Step 5: Solve for x
x = 335,074,428,236.23/668,918.52 - Step 6: Final answer
x = 500,919.65
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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.